Dear Santa Claus,
How have you been? Did you have a nice Summer? How is your wife? I have been extra good this year, so:
http://www.ebay.com/itm/171075774462?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
Please send as many as possible. If it seems too complicated to buy on eBay, make it easy on yourself: just send money. How about tens and twenties?
Bonus points if you know where the letter is paraphrased from 
But, yeah, super cereal, I want that...