This was already posted, but it was in the banquet room so not everyone can see it, and it doesn't belong there anyway.
I was at Office Depot, and I saw a WHOLE BASKET full of these darned little sharpies. They come on a keychain, but they keychain very easily snaps off and on if you don't want that on there. They're about 1.5 inches long (as I remember) and very cute. Here's a link, but I would reccomend checking out local office supplies stores like staples because you can buy them in singles and get whatever colors you want/need.