When I first started making jewelry I was playing around a lot with different types of metals and all the different ways you can make them into pendents. One of the easiest ways is to stamp them.
For this picture I have cord, bronze wrapping wire, a metal disk, and my letters [not pictured a hammer, jumpring, and lobster clasp]
You can purchase any of these items at a jewelry or craft store. The metal letter stamps can be found at a hardware store, but I bought mine on eBay for about 7 bucks.
Plan out what you want to say and estimate the amount of room you need. A tip for stamping: make sure there is a soft surface [a towel or clothe] between the pendent and the surface you're stamping on. Once you have stamped the word or phrase onto the pendent, flip it and hammer the back to straighten out any buckling in the pendent. I hammered a hole for the jumpring with a nail.
Questions? Comments? Post below!