All you need for a suitcase pet bed is a suitcase, something soft to fill it with and something to use as a base. And, of course, a pet to put in it.
(via How to make a suitcase pet bed | MLive.com)
[Thanks, Simon Thalmann!]
Another pet bed idea: repurpose an old TV. For other creative new uses for old suitcases, check out previous Unconsumption posts here.