Called Third Man 45 iPhone 4S Cases, the cases consist of a frame and the backing plate, which may be the part made from this record. That makes them interchangeable, and three packs of backs can be bought. In the promo videos below, Laura Matula, Workplace Manager for Third Man Records, said that if one could devise one way to play these cases by having a record needle, they would play. My websites: iphone 4s cases