ELONG by OXBALLS nip-suckers work and look so cool. They are slightly curved but not tapered. These will suck any size nipple and are deep enough and big enough to fit small to medium piercings. These suckers stay on, the base flares out for more contact with skin. What gives these powerful suction are the four springy rings that make the nipple-tube pull open without collapsing. Apply water or waterbed lube around the base to help them stick.
