Domino Machine

What could be cooler than a domino run? Well, how about a robot that sets up the dominoes for you! With this crate you can build your own robot, then use it to help lay out amazing domino runs!

Christmas Candle Carousel

Froggie Lab Dissection

Open Froggie up, then use a pair of kid-friendly tweezers to explore the major internal organs that you and Froggie have in common — heart, lungs, stomach, and more. Then play a diagnosis game to figure out why Froggie isn't feeling well.

Santa's Light-Up Workshop

Construct a wooden workshop for Santa and his little elves with this light-up, buildable workshop. Customize it with colorful beads and pipecleaners to create a unique look of your own.

Santa's Sleigh Automaton

Help Santa and his reindeer soar through the night sky by engineering a hand-cranked automaton. Learn about cranks, cams, and rotary motion while designing a wintry nighttime scene.

STEM Holiday Bundle (3-Pack)

Remote-Controlled Snake Robot

Slither into the world of robotics by building a remote-controlled snake robot! Assemble and wire the electronics that drive the robot, and customize it by adding a decorative skin.

Little Tree

Make and decorate a kid-sized Christmas tree! Wrap fluffy pipe cleaners around the wooden "trunk" to make branches, then trim the mini tree with the included beads, bells, and tree skirt.

Crystal Chemistry Tree

Plant' and decorate a tree with ornaments and ribbons. Add ammonia, bluing, and table salt to the planter, and watch snowy crystals appear on the branches overnight!

Holiday Tree Bundle Pack (2-Pack)

Ice Skating Rink

Learn to tinker with gears and rig up a motor, then decorate a unique winter wonderland scene complete with festive characters. Turn the motor on to make the gears rotate, then watch your snowman, penguin, and gingerbread man spin around and "skate" on the ice!

Santa Wobbler

Use felt and fluff to craft a soft and squishy Santa toy that tips over when you push it... then wobbles right back up again. A wonderful wintertime way to experience the science of weight and balance, all while DIYing your own cheery holiday decor.

Snowman Wobbler

Use felt and fluff to craft a soft and squishy snowman that tips over when you push it... then wobbles right back up again. A wonderful way to explore the science of weight and balance, all while DIYing your own cheery holiday decor!

Santa and Snowman Wobbler (2-Pack)

With this wobbler bundle, you'll use felt and fluff to craft both a Santa Claus toy and a snowman toy that tip over when you push them... then wobble right back up again! Explore the science of weight and balance, all while DIYIng your own cheery holiday decor!

Walking Robot

Build a walking robot and experiment with mechanical motion!

Color Changing Slime

Explore the science of thermochromism — with squishy slime that shifts color when it changes temperature!

Crystal Chemistry Garden

Craft a colorful chemis-tree and garden using felt shapes and liquid watercolors. Then concoct a chemical solution that'll make your garden grow fun and funky crystals over two days, and learn the science behind them!

Bottle Rocket

Get ready to blast off into the air with your very own bottle rocket. Assemble your launcher, rocket, funnel, and launch mixture to experience some extremely fizzy fun.

Window Garden

Learn about plant science in a hands-on way, by assembling your own suction-cup window planters and growing a set of green bean and squash plants. Learn to take care of your plants, identify new plant parts as they sprout, and make yummy dishes using fruit and other plant parts!

Glow Lab

Explore UV light and mix up 3 solutions that glow in the dark. Explore the chemistry of fluorescence, phosphorescence, and chemiluminescence. 
Delivery note: This item will ship separately from any other items in your order. Your entire order only qualifies for Standard Shipping (delivered within 3-10 business days).

Loom-Knitted Hats

Color-Mixing LED Crystal

Make a color-mixing LED crystal and explore the physics of color!

Headphones

Build the headphone headband, rig up the speaker drivers, and experiment with stereo sound. Explore how speakers and other electroacoustic transducers turn electricity into sound, then learn about the historical technologies that made modern headsets possible.

Punch Needle Pillow

Take a stab at punch needle art, decorating, sewing, and stuffing a punch-needle pillow.

Slime Circuits

Engineer a basic circuit, using your slime as a conductor to light up an LED (and a love of science!). Then conduct a series of electric experiments that showcase the science of switches, resistance, LED color-mixing, and more!

Bubble Machine

Explore bubble chemistry, and how the construction and physics behind your machine helps bubbles form. Experiment with different wand positions and bubble formulas to make bigger, better bubbles, and practice noting your observations like scientists do! Then take a stab at more at-home explorations, from concocting your own super bubble mix, to building a pipe-cleaner bubble wand, to practicing bubble tricks.

Light-Up Wire Art

Build two custom electronic art pieces with EL wire. Choose from five existing templates, or create your own from scratch.

Crystal Ombre Soap Making

Craft and customize two kinds of colorful, crystal-inspired soaps. Explore mineral science, colorful ombre geodes, and chemical reactions.
 
Requires microwave. One project can make 3 unique soaps.

Friction Climbers

Engineer 3 wooden animals to explore the mechanics of friction!

Astronaut Starter Kit

Build and launch a pair of model orbiter spaceships using the power of pumps. Paint a set of model planets, then construct a miniature solar system that really spins. Explore the ins-and-outs of space travel — from the history of space exploration, to the challenges of astronaut training, to amazing facts about life on the International Space Station.

Light-Up Lantern

Puzzle together the pieces of an LED-powered lantern, fit for any budding explorer. Sharpen your spatial reasoning skills while crafting with wood, foam, and fabric.

Geometric Laser Projector

Construct a variable speed laser projector, capable of producing a variety of different geometric patterns.

Robots and Coding

Build and decorate your own friendly robot buddy. Create a robot rabbit with a customizable track to run along. Write programs to solve puzzles and send your robot along a path.

Solar System

Create your own solar system mobile, complete with a light-up sun in the center.

Hand-Crank Flashlight

Assemble your own hand-crank flashlight, great for outdoor adventures, emergencies, or just battery-free fun.

Monster Mix & Match Art Pack

Trace pairs of stencils to customize a monster body, then rub colored pencils over texture cards to color in your monsters. Top it all off by adding stickers, or drawing your own finishing touches, to bring your monster friends to life. 
Monster Mix & Match Art Pack comes as a finished product, not a DIY building kit.

Pegboard Games & Puzzles

Play 11 different games — from Tic-Tac-Toe to Tapatan — using a single travel-friendly pegboard and a set of removable game boards and game pegs. 
Pegboard Games & Puzzles comes as a finished product, not a DIY building kit.

Little Artist

Encourage little artists with a color-block painting project, abstract bead sculpture, and a personalized art smock.

Explore Australia

Build a wooden kangaroo that hops when you press it down. Craft a colorful coral reef art piece, and explore the undersea wonders of the Great Barrier Reef. Get inspired by the Tjanpi Desert Weavers and make your own fiber dog sculpture. Play kolap, a strategy game from the tropical island of Mer. Then whip up a batch up Anzac biscuits — you're going to need a snack after all that kolap competition!

Eggsperiments

Conduct a series of egg-themed experiments that show physics, chemistry, and biology in action. Color eggs using chemical reactions, create sparkly eggshells through crystallization, and more! Eggsplore the scientific method in a hands-on way, all while seeing bubbly, fizzy, bouncy, sparkly science at work! 
Eggs not included.

Camping

Build a glowing campfire, cook up tasty treats, and make a beary fun backpack! 
Through Koala Camp, supplement & extend Camping with FREE content, video and additional DIY activities. We are aiming to provide ~4 hours of content & activities per day - though your camper might go faster or slower!

Electrochemistry Lab

Produce an oxidation reaction that "eats" up aluminum foil. Test a voltmeter to learn about electric potential, and build a coin battery-powered LED light. Then put everything you learned together to engineer a clock that runs on just saltwater and strips of metal! 
Delivery note: Electrochemistry Lab is only eligible for Ground Shipping within the Contiguous United States. This item will ship separately from any other items in your order. Your entire order only qualifies for Standard Shipping (delivered within 3-10 business days).

Robot Sewable Circuit

Explore wearable technology, conductivity, and the science of sewable circuits! Sew up a soft, flexible circuit using conductive thread, add LEDs, then craft a robot keychain whose eyes light up when you touch its hand to its belly. Ready to glow?

Red Cape

Make your own one-of-a-kind cape and personalize it with felt stickers!

Blue Cape

Butterfly Wings

Personalize the butterfly wings set with felt stickers and velvet ribbon before flying away!

Speedy Race Cars

Create a custom speedy race car and use black washi tape to create a speedway on any surface.

Kellan Plushie

Everyone's favorite koala makes the perfect cuddly companion for a Koala Crate kid — whether they're learning about science, making amazing art, or having a pretend-play adventure. 
This Kellan Plushie comes as a finished product, not a DIY building kit.

Young Chemist (3-Pack)

Ignite a passion for science at an early age and save when purchased as a pack. Recommended for Ages 5+.

Enrichment for Grades 9-12 (3-Pack)

Electronics (4-Pack)

Shop for advanced electronics favorites and save when purchased as a pack. Qualifies for free shipping!

Professions Starter Kit (3-Pack)

Discover three of the coolest careers around with this crate bundle packed with hands-on learning!

Chemistry (4-Pack)

Ignite a passion for science with 4 complete chemistry lab kits. With Electrochemistry, you'll complete 2 experiments and engineer a clock that runs on just saltwater and strips of metal. With Fire Lab, you’ll create a colorful flame lamp and complete 7 combustion experiments. With Glow Lab, you’ll receive a UV light and mix up 3 glowing solutions. With Vortex Lab, you'll build a magnetic mixing machine and explore 4 amazing reactions. Recommended for Ages 14+. 
Delivery note: The Chemistry Pack is only eligible for Ground Shipping within the Contiguous United States. This pack will ship separately from any other items in your order. Your entire order only qualifies for Standard Shipping (delivered within 3-10 business days).

Basketball Catapult

Aim, shoot, and score with this physics-friendly crate! Engineer an adjustable catapult and play a spirited game of basketball. Learn about the science of sports, and experiment with different angles and arcs until you're a hoop superstar.

Koala Crate (3-Pack)

Paint a very special water-play mat with a water-dipped paintbrush to reveal the ins-and-outs of Kellan’s neighborhood. Experiment with color mixing, build a fishing rod, and explore different sea creatures! Then make a cuddly snake, play a game with a chameleon, and build a turtle box.

Cannonball Launcher

Build a launcher that uses elastic power to shoot foam cannonballs. Contains everything you need to build a working launcher and matching mount.

Tinker Crate Engineering (3-Pack)

Shop for Tinker Engineering favorites and save when purchased as a pack. Recommended for Ages 9+. 
Qualifies for free shipping!

Veterinarian Starter Kit

Check up on a favorite stuffed animal with a stethoscope, syringe, and other handy vet tools. Explore animal anatomy by assembling organ and muscle systems. Play a "find the fracture" game using an x-ray lightbox and a set of animal cards. Learn to read cat and dog body language, and how vets understand animals when they can't talk.

Enrichment for Grades K-2 (5-Pack)

Hydraulic Claw

Construct your own lifting claw and learn how hydraulic systems work. Continue the experimentation with bonus design challenges.

Enrichment for Grades 3-8 (5-Pack)

Kiwi Crate Mechanics (3-Pack)

Shop for Mechanics favorites and save when purchased as a pack. Recommended for Ages 5-8+. 
Qualifies for free shipping!

Safari

Embark on a wild safari expedition with 3 engaging activities and a bonus magazine.

Eureka Crate Fun and Functional (3-Pack)

Electric Pencil Sharpener

Sharpen some pencils — and your engineering knowhow — with a pencil sharpener you built yourself!

Atlas Crate (3-Pack)

Go sightseeing in Indonesia, where you can design a canvas tote and build a racing komodo dragon. Then visit Colombia, where you can take in the sights and sounds of the country! Finish off with a trip to Italy, where you can build a spinning pizzeria automaton and make eye-catching art.

Add a handmade touch to make all of your celebrations extra memorable. Fun DIY crafts are perfect for holidays, birthdays and other special events!

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