coffee mugs

[cspara.livejournal.com]

I want to do a project with the two children I nanny for (ages 2 and 4) that involves making personalized coffee mugs for Christmas. I was wondering if anyone knew of any kits that existed for drawing on or painting mugs, and if not then I how I could do it on my own? The image I have in my head is of the kids painting on the outside of the mugs and doing whatever their heart desires, but then I'd have to have some way to seal their artwork so that it wouldn't come off in the dishwasher.

So does anyone have any advice, suggestions, or links for me? Anything would be greatly appreciated. If the project is a success, then I promise to post pictures afterwards.