Have you tried Crayola's new dry erase crayons??? I have and I love them!! I especially love them on laminated materials. School starts next week so while I have only tried them out at home, I will have to see how they work in action, but the price is worth giving them a try. I met another teacher that told me that their washable crayons work just as well so instead of buying dry erase markers for student dry erase boards this year I am gonna try the washable crayons, not sure how that will work yet but I'll keep you all posted!