Do-Nut 2 Cock Ring Smoke from Oxballs. Shockingly Superior. Do-Nut 2 is Oxballs' take on the traditional jelly cock ring. It is made from our signature Flex TPR so it is super stretchy and soft to the touch. Do-Nut 2 is everything you love about our original Do-Nut 1 design but squishier, bigger...