I found a great how-to on making these stamped washer necklaces over at Not So Idle Hands. Super easy and simple. I hammered these while I was working my garage sale this weekend. All you need is the stamp set, some washers, a hammer, and a permanent marker. Oh, and a ribbon of some sort and bead if that's your style.
I didn't take how-to pictures - follow the link mentioned before for that. But basically you just hold the letter stamp, hammer the top of it, then color in where you stamped on the washer with permanent marker (wiping off the excess). It's a little tricky not to get the stamp to move while you're hammering on it, but as I practiced I got better.
I think there are endless possibilities. But I thought I was genuis to make a graduation gift:
If you'd like to make them you can find the metal stamps at Harbor Freight and washers at any home improvement store.
So go grab some supplies and crank out a few of these! More Stamped Washer IDEAS HERE.