In my search for the best crayons for my 2yo DS, I bumped into a great Crayola special on a site called "catch of the day".
I think it's a pretty good deal. I bought the washable markers for $8,- at Big W 2 weeks ago. They're only 2,95 on this site with a capped shipping of $10,-!
Hurry as it seems they're going to run out of items soon