Tanga has this waterproof case for Apple iPhone, iPod Touch & Other Electronic Devices for only $6.99 (76% off).  Shipping is $3.99.  You can buy up to three cases for one shipping rate.

“This amazing waterproof iPhone and smartphone case will keep your device dry without affecting its use. You heard right, this Waterproof case allows full use of your iPhone’s screen and controls so even in water you can play games, send emails, watch movies, and do all the other things you love to do with your phone! Best of all, this case has been designed to float if dropped in the water, so you can easily find it!”

i want this – it’s cool