DonJoy Iceman

A teammate of mine recently had knee surgery, and was given a DonJoy Iceman to aid his recovery. He loaned it to me for my sprained ankle, and it's great! Just fill it with ice water, wrap the pad around the body part you want to chill, and relax. You can just leave the thing on for hours (although you can set the dial cold enough to be dangerous at such durations, I think). The unit appears to cost around $200 new, but happily seems to be well-represented on eBay. With some luck you could score one in the $50-70 range. This is very expensive when compared to the normal cost ($0) of icing an injury, but would definitely be worth it for major rehab projects, trainers, or teams. And my ankle is very, very happy to have a loaner unit.