Add the 11th ... booklets of Bible verses. Look lady, I'm here for the candy. If you think that kids trick-or-treating is step one on the path to Satan, just turn out your porch light that night. (yes, I had a neighbor like that when I was a kid).
Worthless stock certificates.
Hand out WaMU to any kid in a Obama mask. I don;t have any of those, by My Husky Tickets (0-7 WA Huskies) are as as bout as worthless, and also a good choice if I want to disappoint a kid on purpose.