I know these are old and dated but I always have a soft spot for thermally activated mugs.
This one in particular more poignant then the rest. It contains the entire Bill of Rights that disappears right before your eyes
I'm one of the classic civil libertarians. Don't trust the government and always watch out. This mug will help to keep you on your toes. Or it means that warm liquids are trying to keep us down... Hard to say.