I started with this:
A tripod of solenoids that would behave as specified in this image:
The emotion I was going for was futility and frailness. I wanted the tripod to scramble about aimlessly, the firing of the solenoids powering it. Unfortunately I over estimated the strength of the solenoids and found that they wouldn’t move when under their own weight. I simplified, and got a bigger solenoid.
I found that its’ scooting about was still really weak and pathetic, which I liked. The ideal version of this piece would have had a slice of pizza stapled toppings-down to the bottom, as the sled.