Here are some photos taken from a microscope by Matt.
These are 3 shots of my sapphire/diamond ring. It's a lot smaller in real life.
These are some shots of money ($$$).
A US $20 bill (the new kind), a close-up on the reflective ink
The same $20, a close-up on the regular ink. Compare this with the Australian printing below. The US printing is a lot less precise.
An Australian $10 bill. Australian currency is printed on plastic. No kidding.
