If you make one you might want to sketch out what you are going to put up there on paper. I didn't feel like doing all that and since I only had $1 invested in the mug I didn't feel a lot of pressure for it to be perfect.
So I just started drawing it out on the mug while I was waiting for the coffee to brew. (That's probably why that "i" in "sittin'" is a little bit unsure if he's going to be an "i" or an "e"...but that gives it character right?)
I put my initials and the date on the bottom for fun.
And baked that puppy in the oven at 350 degrees for 30 minutes.
After it cooled I ran my fingers across the writing to see if it smeared and it was fine! No smearing at all. A read a few blog posts with differing results but someone wrote that the key was to get a cheap mug for the project because the glaze will melt easier and allow the marker ink to set.
I'll keep you posted as to how it holds up in the dishwasher!