I love these two fabrics. A "space" print and a Prada-esque banana print. They were both fat quarters I got off eBay. Pretty patterned fabrics can get quite expensive, but if you're only looking for a little bit of fabric for a small project like this then fat quarters are brilliant. They're dead cheap and you can get so many different patterns.
These are really easy and quick to make. I sewed each one of these up in about 40 minutes (or during one episode of Bones each. Darn you Leia for getting me addicted!)
If anyone wants a little tutorial just ask and I'll be happy to do one. I'm definitely going to be making some more of these!