4M Green Science Rocket Kit – STEM Toys DIY Physics Science Experiment Launch Educational Gift, Brown/a (4630) $13.99
4M Green Science Solar Robot Kit – Green Energy Robotics, Eco-Engineering – STEM Toys Educational Gift for Kids & Teens… $16.14
4M Toysmith, Green Science Salt Water Powered Robot Kit, STEAM Powered Kids, Beach Toy, For Boys & Girls 5+ $16.99
Thames & Kosmos Robotics Workshop Model Building & Science Experiment Kit | Build & Program 10 Robots with Ultrasonic… $199.10