I have a Zagg 50% off coupon. I realize this isn't exactly directly backpacking related but indirectly it could be, for those who don't know, Zagg sells protective cases and a proprietary (I think) protective filament for MP3 players, cell phones, watches, GPS devices(?), etc.
I have one for my Suunto Core, works pretty well.
It expires on May 31st: i3dsda9w