$15-$25

   

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  1. Cannonball Launcher
    Sale

    Cannonball Launcher

    $24.95 $20.95

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

    $24.95

    Learn all about the science of string tension, and put it to work engineering wiggly, wobbly push puppets. Then craft a turtle toy you can race using a pull string.
  3. Combination Vault

    $24.95

    Engineer a combination vault in which to stash your secrets, accessible by a numeric code only you know (shhh). Then learn about other sneaky spy gadgets and encryption tools, and the science behind them.
  4. Kaleidoscope Play

    $24.95

    Build a spinning kaleidoscope, mirror book, and a travel pouch for your mirror! Explore angles and patterns.
  5. Cityscapes

    $24.95

    Play with geometric shapes to craft unique skyline paintings. Design buildings using cards and foam connectors, then put them all together to create a bustling card city! Then use stencils to decorate a drawstring bag to store all your city tools.
  6. Screen Printing

    $24.95

    Print your own graphic on a backpack! Learn and practice screen printing, design your own graphic, and screen print your backpack!
  7. Hydraulic Claw
    Sale

    Hydraulic Claw

    $24.95 $18.95

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

    $24.95

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

    $24.95

    Encourage little artists with a color-block painting project, abstract bead sculpture, and a personalized art smock.
  10. Color Changing Creatures
    New

    Color Changing Creatures

    $24.95

    Engineer a pair of linkage-powered critters that stick their tongues out when you pull a tab, then use them to play a felt fly-catching game. Paint your critters with thermochromic paint that changes color when heated. Finish off by crafting a set of color-changing coasters!

   

Showing 21 to 30 of 92

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