I use hockey tape. It runs 3 inches wide and sticks really well. It doesn't affect my skin
so it works for me.
What I do is cut a piece of tape about 4 to 5 inches long. Then I cut a small diamond shape hole about 1 1/2 inces from one end. I adjust the berrys then run the tape front to back... aligning the diamond shape hole with the opening in the helmet. I pull it snug, and I'm good to go. Whe I gotta pee, I sit down and everything works as planned.
One thing that helps is rolling the scrotum skin (now empty) onto itself before the taping
