As Happy Birthday presents for a couple friends (Monica & Angel), my friend Ben & I took them out to dinner and made them some jewelry out of 1 oz. silver coins.
The ladies came up with these nice designs themselves. Angel's pendant is on the left; it's an A on a treble clef. Monica made the M on the right. The coin in the middle is the "before" picture. I got their designs into the computer, then cut out the real thing on the CNC mill.