I didn't own that many Transformers toys as a kid, but one of the few I made sure to get was Soundwave. He turned into a tape player, and then you could put other robots that turned into tapes inside him. It was really awesome. Above is the toy modeled after Soundwave in Transformers 2; to the right is the alternate form, which looks suspiciously like something other than a tape player.
I don't even care, Michael Bay. I'm just saying that when you're talking about Transformers toys, as strange as it sounds, a tape player is a lot better than a bejeweled alien jet thing.
First look at Soundwave [Empire]