[lucky7z]

another effective way to make ur own:
empty TP or paper towel role cut down to desired length and covered in thumb tacks. I use three rows of tacks, 2 would work or 4 if u want i guess. Then close as tight as desired when limp, and use duct tape to close it, looped around multiple times for security. I find it most painful when its loose enough to get very near full erection, too tight and it wont go past half flaccid and too loose will make it hurt but not prevent an erection.