VINTAGE Set of 5 Tupperware Parfait Dessert Pudding Ice Cream Sundae Cups 754-36
They can separate into 2 parts: the cup, the lid and the bottom saucer. These snap together to form the overall dessert cup. They are AMAZINGLY RETRO and VERY 1970s. I think every house had a set of these in the 1970s/1980s.