The DonJoy Shoulder Therapy Kit is awesome for home use for those who travel often.  If you suffer from rotator cuff tendonitis, shoulder bursitis, shoulder dislocation or are rehabbing from shoulder surgery

Finally, a comfortable, crutch alternative designed with the end-user in mind. If you have suffered a recent sports injury, have joint pain or issues with mobility, then consider mobilegs as a better crutch alternative.
Mobilegs - Designed to be a superior crutch

The complete shoulder therapy kit from Breg includes everything you need to rehabilitate an injured shoulder or a shoulder that has undergone surgery.

An inflatable pillow, surgical tubing, and waist belt provide the tools necessary to complete a wide variety of home rehabilitation exercises for knee injuries.

The deluxe ankle therapy kit from Breg includes everything you need to rehabilitate an injured ankle.