Structures & Contraptions by  "12 year olds" and "3 years old"

KEVA Brain Builders Deluxe

KEVA Contraptions Reactions

KEVA Contraptions 50 Plank Set

STEM Machines Engineering Kit

LEGO Chain Reactions

Engino Deluxe Architecture Set

Q-BA-MAZE 2.0 Grand Prix Racing Set

Snap Circuits^®: My Home

Q-BA-MAZE 2.0: Rocket Set with FREE Light-up Cubes

Q-BA-MAZE 2.0: Super Race Set

Design Your Own Gumball Machine Kit

Q-BA-MAZE 2.0 Lights Set of 2

Spin-Gineer Construction Kit & Refill Rods: Set of 2

KEVA Design Woods

E-Blox® Circuit Blox 395, Circuit Board Building Blocks Classroom Set, 264 Pieces

Geomag™ Mechanics Gravity Loops & Turns: 130 Pieces

Spin-Gineer

KEVA Contraptions 200 and 400 Plank Sets with FREE Bonus Planks

Art-chitect with FREE Colored Pencils

STEM Newton's Laws Engineering Kit