Their web site claims that MouseBlister can be “great for reducing CTS & Tendonitus Symptoms associated with prolonged mouse use”. Apparently it took more than a year to develop the technology to stick little bits of cut up rubber onto a mouse. If you have trouble gripping your mouse because it’s too slippery or if you just enjoy sticking pieces of rubber all over stuff, this is the product for you. Only $8.99 (free shipping) for 25 self-adhesive mouse blisters. Color choice is wide open so long as black is your favorite. Available soon in red, blue, yellow and white.