Cool! I've had some wacky fabric made into dog bandanas in the past. They turned out great. Unfortunately, I lost my dog this past summer so they're sitting in a dresser until I get my next pup (which could be very soon).
On a somewhat related note, I'm in the process of having my girlfriend make a wacky quilt from various t-shirts, boxers, fabric, patches, etc. It's going to be a huge job and she's got other sewing projects in line ahead of mine (not counting working full time and being a single mom to two little kids), so it probably won't happen real soon, but I'll post pics if/when it gets done.