Not a coupon code but here is a tip. I just bought mine from Amazon the other day. Here is the link. They're currently selling the Seidio Innocase for $22.46 but if you spend at least $25 they ship it for free. So I just bought a pen which I needed anyway (found using this site) to bring the total over $25. That's the best deal I could find last week, so it's probably still the best one you'll find right now.

Fits my Sprint TP2 perfectly and looks way better than my Body Glove.