I just stumbled onto designboom's cassette wallet, and it is good. Real good. Each one is handmade by an artist in Italy named Marcella Foschi, which is a very nice name.
From the mighty 'boom:
"retro wallets hand-made from cassette tapes
as every 'cassette wallet' is hand made,
each design is a one-off. once its gone its gone!"
Righteous. The cassette wallet is 43 smackers Amero. (39 plus S&H)
If you have the means, give signora Foschi the gift of a sale.
If you're more the DIY type, here are four ways to make your own.
Of course, quality and difficulty levels will vary, but who doesn't like a challenge?
If anyone makes one of these, do be so good as to snap a picky and send it to: superforestnyc(at)gmail(dot)com. Wheeeee!