RC scorpion
I build a lot of random technic stuff (usually per my daughter's request). This time I was prototyping a cat tail that would move multiple joints in the same direction through a single mechanism. It didn't work out the way I wanted (it works, but the secondary joint moves very subtly, and there's no third joint), so I ended up making it into a scorpion instead. It has individual motors for the wheels, and one for the tail, and the last one for the hand grips. The small motor can't drive the grip well unless on fresh batteries, but on full charge the grip strength is enough to grab my finger and hold its own weight. Anyway this is a really fun RC toy. It's very challenging to steer though, especially when the goal is to pick up toys off the floor and move them around. It has a mouth space for eating random stuff too when it gets hungry. 😆