My dd's love rocks and art so this is going to be fun. Thought I'd share a link that has some great getting started tips and whatnot.
Here is a link to free pdf's http://petarock.homestead.com/howto_step_by_step.html (the lady bugs are SO cute!) and the frog tic-tac-toe...love it!
She is really talented. May have to think about a custom memorial rock for our boxers we lost over the past few years.