The Spacenavigator mouse is a staple anywhere professional CAD people are working, and it looks like it is a natural fit for a robot arm. According to [angrymop], the Raspberry Pi can read the ...

It can manipulate or move multiple types ... the back of a live mouse. More information: Hyeongho Min et al, Stiffness-tunable velvet worm–inspired soft adhesive robot, Science Advances (2024).

Take some inspiration from this maze-solving robot mouse. It take the idea of a line-following robot, and makes it infinitely more cool. The tiny rover uses sensors to map out a physical maze.