I'm more of a 1970s boy, myself, but am blanking on the toys I most loved. I did love the sit-n-spin, mentioned in the comments (who knew there was one for adults?), but other than that, I can think only of the Odyssey video game system and, well, "Choose Your Own Adventure" books, which weren't toys. I caught the Rubiks Cube wave, but was never any good at it.
For "Games" lurkers feeling betrayed by this post about toys: I put it here because I think of Rubiks Cube as "game"-ish. It's a puzzle -- somewhere between a game and a toy, I guess. I can move the thread to "Catch-All" if regular "Games" participants are outraged.
Edited by Christian, 22 September 2009 - 11:38 AM.