A Buffalo, NY, parking meter mechanic was running a pretty lucrative criminal conspiracy one quarter at a time. Over eight years, he managed to steal $210,000, or five tons of quarters from modified meters. That's a lot of pocket change.
If you need a quarter, but live in a part of the country in which coinage has been banned by some tyrannical mayor, iFixit's got you. Or maybe you're just some pervert who gets off on paying $3 for $0.25.
Dance, quarters, dance! Watching these dozens (hundreds?) of coins flex and pop is an animated wonder that makes raises up my spirits. And watching how its creators pulled it off? That just makes my head hurt.