"Mullet" gowns are trendy, platform stilettoes are in, but the real breakout item for prom 2013 is the corsage. Once a slightly dowdy accessory, now clever DIY'ers (and some florists) are using rhinestones, feathers, LED lights, and found objects to make one-of-kind pieces that are modern and sassy-and cheap. Prom costs are soaring and shoppers can expect to spend a bare minimum of $25 on a store-bought corsage. If you want to make your own, the always-hip Rookie Mag has an easy tutorial. Here are our favorites from Instagram.