I got into a silver stamping kick lately. So I thought I'd show you the inexpensive, quick way I did it.
All you need is a metal stamping set, a nice hammer (you don't have to use a huge mallet like I did, but it has a nice flat head so it doesn't ruin my stamps), and some silver plated utensils. I bought the Pittsburgh 1/8" stamping set from Harbor Freight. It was on sale for $8.99. We have a Harbor Freight by me, so I just picked up a set, quick as a flash. Then I ran to a few thrift stores looking for silver plated spoons. That was actually the hardest part.
Once you have all your supplies, you set up a workstation. I chose the cement patio because I don't mind if a couple of marks get left behind. Then. Before you do ANYTHING else. Practice. Use a penny or something. A penny is softer than the silver but it will give you an idea of how hard to hammer the stamp and how to hold it, etc. I usually give each stamp 2-3 good whacks. Once you have a good feel for things, have at it.
A few tips: You can measure and mark where you want your letters to be (I am the impatient sort, so I just eye-ball it). Make sure to hold the stamp quite firm. If you hesitate, you'll get a double image. Also, triple check the placement of your stamp so it's right side up and pointing the right way. Trust me. Or you might run into a little bad luck. Literally. Ha.
To darken the letters after stamping, draw over the lines with a magic marker and then rub off the excess. I'm not sure if it's food safe with the marker, so keep that in mind. Happy stamping!