Back by popular demand! Here’s another intentionally useless (but usable) invention by Kenji Kawakami, who sparked the famous Chindōgu (or “curious tool”) craze in 1990s Japan. Made in collaboration with Dan Papia, these shoe umbrellas are a gloriously impractical solution to keeping your feet dry in wet weather, and were one in a number of equally amusing iterations (interestingly, they were always paired with high heels—flat shoes, it seems, aren’t worth preserving). Would you wear them?