- Shop for Tinker favorites and save when purchased as a pack. Qualifies for free shipping!
- Print your own graphic on a backpack! Learn and practice screen printing, design your own graphic, and screen print your backpack!
- Construct your own lifting claw and learn how hydraulic systems work. Continue the experimentation with bonus design challenges.
- Build a ballista and experiment with aiming and launching!
- Design your very own stencils, then use them to create a colorful canvas-bound book holder... and anything else you'd like to stencil!
- Shoot an air vortex across the room and experiment with fluid dynamics!
- Sharpen some pencils — and your engineering knowhow — with a pencil sharpener you built yourself!
- 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.