Cock rings

I've priced cock rings and they are kind of expensive, so what I do is, measure around the base of my penis, around the base of my penis and balls and around each ball. I've already done this, then I go to the hardware store and buy rubber 'O' rings with those measurements. Then I come home and get on solotouch and read a few stories, then I place a rubber 'O' ring around the base of my cock and balls, an 'O' ring around the base of my penis and an 'O' ring around each ball. The feel and sight is such a turn on and makes me super sensitive. I love it and its really cheap. I buy them so they are just a bit snug.