Rubber Band Propeller Car Kit (10 Pack) – DIY STEM Activity for Kids, Complet...

Motorized Capsela 200 Model, VTG STEM Science Discovery System complete set

SolarFlower Sapphire Swirl STEM Kit | Build a Motorized Solar-Powered Flower ...

Educational Insights GeoSafari Motorized Solar System, Model Planets, STEM Toy

CrunchLabs Propeller Launcher Kit by Mark Rober for Ages 8-11 Years, 12-16 Years

new NATIONAL Geographic POWER Rocket MOTORIZED Launcher 200 FT STEM

24 Set Helicopter Kit 6" Plastic Propeller for Stem Activities Propeller Blad...

Engineering Makerspace Alien Robots STEM Experiment Kit 10 In 1 Models Motorized