We love a good DIY, and Havaianas does too. The brand is gearing up for a summertime pop-up shop at North Avenue Beach, featuring what is basically a flip-flop bar where you can design your own shoes! Starting this Thursday, stop in to this Brazilian fruit stand-inspired shop to chose from among a countless combinations of flip-flop styles and colors. The pop-up shop is right on the beach, so in the event that a frantic labrador runs off with your strappy sandal, have no fear. Better still, Havaianas has a treat for Refinery29 readers only. Tweet this story and tag @refinery29. Five, seriously five feet-focused tweeters will win their own pair of custom Havaianas! Havaianas Pop-Up Shop, 1600 North Lake Shore Drive (near the North Avenue Beach House).