

Cow
Material: tubular steel, steel bars, paint, sitting ball, medicine balls
There is a sitting ball that has six rubber fingers spread out so that it cannot roll away in the office. That's sensible and functional. The ball looks like an abstract udder - everyone finds it funny and associates wildly with it.
Can you build a cow when you actually only have an udder that isn't an udder at all? Yes, you also need four medicine balls. Then it works.