I have a Felt, fat tire bike that I use for running errands and just cruising around the neighborhood with my kids. It's not a vintage bike, but it is designed to look like one.

So, to increase the bike's cargo-carrying capabilities, I want to add panniers to my ride. However, for this particular bike, I don't want to put on canvas or nylon. I'd like to find a set of vintage panniers, a-la Pee-Wee's Big Adventure.

Any ideas on where to track down something of this or similar design?

Thanks.