I don't know how many clamps you have? But I was looking through your photos. By the way amazing to jerk to. I saw the pencil challenge then I had a idea. Why not a clamp challenge. See how many you can get on both. Next step would be the nipples to have some weight on them. Final step would to be to remove every clamp except the nipples clamps without your hands or other items. If your nipple clamps fall off before the other ones you should redo the pencil challenge except anally.
I had two clamps, I lost one, and I need to dig through to find all the pegs again and I should have about twenty pegs and which pencil challenge? Care to remind me?