Teach Tech "Meta.4", Transforming Robot, STEM Solar Toys for Kids 8+ - Walmart.com
XGO Robot Dog kit from Elecfreaks
Amazon.com: DarkPaw Bionic Quadruped Spider Robot Kit for Raspberry Pi 4 3 Model B+ B, GITSEE STEM Crawling Robot, OpenCV, Teens Fun Raspberry Pi Robot Kit with PDF ( No Paper Manual ) :