Mr. Pop History – This is a good one and my guess is “The Today Sponge.” In the episode – Elaine runs around seeking the sponge – her favorite method of birth control and she finds a case, then determines if boyfriends are “spongeworthy.” This episode first aired in 1995 – and that’s when the product disappeared… or did it?

Eight years later – it was resurrected. It was originally taken off the market because of problems at the manufacturer’s plant. Instead of expensive retooling, they just stopped. Another company began production of “The Today Sponge” in 2003. The original product had been on shelves from 1983-1995.