Permanent Markers

What's the name of this children's book (involving magic markers I think)?

I think there are a bunch of short children's books that are by the same author... obviously about different things... but this book I'm trying to think of involved magic markers. A little girl's either dad... maybe uncle... was asleep and she colored all over him and something about them being magic markers and not showing up. Or she colored over the markers with a magic marker. I can't remember exactly, but it is something like that. Hank Potter? I can't find anything on that. And no, it isn't that David Mark Lopez book, either. D:

Public Comments

1. Hank Potter
2. Maddie's Magic Markers series by David Mark Lopez?
3. An old book and a boy not a girl (plus not markers but crayons...)but could it perhaps be Harold and the Purple Crayon that you are thinking of....kind of a long shot, but magic for sure. : ) Here's cover image : http://images.google.com/images?q=harold+and+the+purple+crayon&um=1&ie=UTF-8&sa=X&oi=image_result_group&resnum=4&ct=title If that's not it, please try and add a few details you might recall--when did you read the book? Picture book or longer story? Any character names? Good luck! Amy
4. Purple, Green, and Yellow by Robert N. Munsch One of my personal childhood favorites!!!