Amber Luke is famous for multiple tattoos and body modifications. She has also made some porn clips:
If you are a fan of latex clothing and opera, you may enjoy this, and similar videos:
Apparently the latest big fetish thing for men is a saline injection in your testicles.
I gather it is temporary, and the fluid is gradually absorbed by the body. But I imagine it could be addictive.
Most people seem to use small amounts of fluid, but some, of course, go to extremes using many liters: