Mighty Wallet

We've always thought it counter-intuitive to spend a lot of money on something to hold money, so we carry our cash in a Mighty Wallet. Designed by Terrence Kelleman of Brooklyn-based Dynomighty Design, the $15 billfolds are made entirely of tear-resistant, water-resistant, expandable, and recyclable Tyvek. Mighty Wallets are currently available in 28 designs, which include trompe l'oeil looseleaf paper, comics, maps, circuit boards, and weathered leather as well as photoprints of confetti, beach scenes, and the lunar surface. Designers will particularly appreciate the bold "color bar" version, allowing you to flash a little CMYK whenever making a purchase. Ultra thrifty? Grab a FedEx envelope, head to YouTube, and search "tyvek wallet how to" for Dynomighty's DIY demo.