What will those crazy kids at Coudal come up with next? Their latest endeavor, Swap Meat, is reinventing the flea market, craft fair and pen pal all at once. You mail them something cool you’ve made, they’ll sort, swap, and send you something of equal value. But hurry, Coudal’s only swapping meat until April 1. It’s like one of those chain letters where you have to copy the letter and send it to ten more people or else you’ll have bad luck for the rest of your life. Well, it’s not really like that at all but that’s the only other mail-related thing that we could think of besides anthrax. (Don’t send that.)