I tried to make a robot that everyone can enjoy.
3D Data, How to Make, and Code are open to the public.
You can put it together with parts that cost around 7000 Japanese yen (70 US dollars at ¥100/$, excluding PLA filament).
The power supply is designed to be safe with AAA batteries.
For example, how about as a material for STEM/STEAM education?
Or simply enjoy 😊
https://www.instructables.com/Raspberry-Pi-Pico-Open-Remote-Control-Walking-Robo/