Especially after seeing ESB and ROTJ, when I was a kid I used to freeze all my figures. I'd put them in clear cups and glasses, fill them with water, and put them in the freezer. This I found fascinating. I don't even remember extracting them from the freezing process, in fact I think I left 1 in the freezer for months at a time it was so nifty. I think I knew it was wrecking the paint and joints, but it was too interesting to avoid freezing them.
Come to think of it, just now I remembered too, after seeing ESB, I remember playing in the freezer frost as if it were Hoth. Growing up in SoCal, that was the only snow action we were to enjoy. I think it was a lot of Star Wars and GI Joe guys in the freezer having arctic adventures. Thankfully, my grandma had an old freezer that didn't self-defrost.
So, anybody else freeze their action figures as a kid?