Ya know, I think I'm slipping I didn't giggle at the title until I read the thread. I must need more sleep or something.
Back to the actual topic, I use two tennis balls taped together, got that idea from someone on here actually while searching for foam roller stuff. I don't know how the different that is from the massage balls. They look interesting, especially the knobbies.
"Live, more than your neighbors. Unleash yourself upon the world and go places. Go now! Giggle. Know. Laugh. And bark the the moon like the wild dog that you are!" - Jon Blais