I used my cricut to cut out the letters. It took me forever to figure out how to work this, but place the vinyl front-side down to cut your letters. You have to do it backwards because you will etch on the bottom on the glass - not inside where food will go. Oh, and I used the Jasmine cartridge. (If you don't have a cricut you can print on the backside of your vinyl and then use an exacto knife to cut out the letters)
Frugal Crafty Tip: When I say vinyl I'm not actually using vinyl! It's contact paper (from the dollar store) and works exactly the same!
Next comes the hardest part - sticking the vinyl to the back of the dish. Make sure most of the bubbles are out and that it is mostly centered. It doesn't have to be perfect - you'll go crazy if you are aiming for perfectly centered! Mine looked like this:
Now for the fun and really easy part! Dab on the armor etch stuff (beware - this stuff smells) and continue to paint over the exposed areas, making sure every open space is covered. I did this for about 3 minutes (their website says you only need to do it for one minute though).
After you've had fun swirling that white goey stuff around, bring your dish over to the sink, rinse it off with warm water (I believe the warm water helps de-active it so it won't etch other areas of the dish). And get excited to do a little happy dance, peel off the vinyl, and Ta-Da! There you have it!
At this point I also cleaned the bottom of the glass with window cleaner and a paper towel, to make sure everything was off and that it looked pretty.
I'm trying to decide what I want to etch for myself now..the possibilities are endless and I'm so excited! :)