Gotta love these things! I remember being a kid and mom getting this set and we could make our own frozen treats! I've heard these called "Popsicle molds", but Popsicle is a brand name that has clearly no relationship with Tupperware. The correct name for this set is "Ice Tups"!
What a great way to make an inexpensive treat and keep unnecessary packagaing out of the trash cans!