How do silly bandz keep their shape?

The just do. Live with it, and stop asking so many questions. Just be happy you have some! :)

That's a dumb answer. If people used that answer for every question, the world would still be flat, the world would still revolve around the sun, and there would be no silly bandz.

The better answer comes from KGB: "Silly Bandz are made of silicone & die molded which is what allows them to bounce back into fun shapes such as animals & letters after being worn as bracelets."

Which was, in fact, the answer I was looking for, not a cop-out answer like "they just do," or "to make little girls/boys ask questions."

Whoever answered the second question...makes no sense. The world DOES revolve around the sun, dimwit.