Over the weekend I finally took on a project that I have seen in numerous places recently. It's super easy to do and a lot of fun. Brennan helped with the first one I completed then got bored with how easy it was!
Take any size plate, mug, bowl, etc that can be used in the oven. I found this one which is a small platter at Wal-Mart for $2.47 - their "Canopy" collection. It says on the plate "oven to table".
Get good acrylic or ceramic paints that are non-toxic. I choose these at Hobby Lobby. They were a little expensive but should last a long time. I understand you can use colored Sharpies but there seems to be some debate about their being non-toxic.