Nipple clamps
I found these, and I think they will work for my needs after a couple of modifications.
http://www.sub-shop.com/products/metal-worx-adjustable-nipple-clamps
Nipple clamps
Does anyone know if there are are nipple clamps available that have a set screw type jaw that is pointed so it digs in and simulates being pierced? All the ones I have tried slip off when my nipples get pulled to great lengths.