I dance open rhythm scholarship, and I keep losing earrings on the floor! I've tried a number of different pair: omega backs (the o-shaped lever on the back), French wire, and posts. Regardless, when I spot, typically snapping my head sends one earring spinning like Voyager out across the ballroom. I bought a new pair of smaller, lighter weight hoops with a snap back, wore them to rehearse in yesterday, and sure enough - I lost one in swing. It has a snap closure, AND little plastic doohickeys that would (supposedly) keep them in place even if the snap opened. I think I'm just going to glue the things closed and then pry them open at the end of the night with pliers. Unless someone out here has better advice, that is. I appreciate your suggestions!