1 ounce of gold!

Super-niche thing, but I'm a mining geologist who is sometimes called upon to give school presentations and things like that. I have always said an ounce of gold is as big as a Hershey's Kiss, but decided to actually model a few physical representations of the volume of an ounce of gold. (Note - it is much smaller than a Hershey's kiss.) Anyway, hopefully someone else can find these useful, or print a bunch in gold filament and pretend to be a high roller!