Permanent marker. Coffee mug. 350 degree oven. 20 min. (Although we tried this with colorful "ceramic" markers and let the mom's decorate according to their personalities. The marker came off though because we did not bake!
Tea Time Dollar Store Mug - OPC The Better Half. This would be a great gift for a tea lover..there are tons of tutorials for using Sharpie oil paint markers on dollar store ceramics like these, then making the surface permanent by baking.
DIY Sharpie Mugs - Living Well Spending Less™. Here is what you need: Plain mug Sharpie paint oil-based markers or DecoArt glass paint markers pencil (optional) masking tape (optional) Read more at http://www.livingwellspendingless.com/2014/02/10/sharpie-mug/#TsZZSbKhgrIiIqTm.99