I've noticed several pics of dicks and sounds inserted. I'd like to know what to start with, i.e., size and shape, what to purchase, and where to purchase. How deep can I expect to get a sound? Is there a "technique" involved? I had a PW a couple of years ago, without the piercing though, there was another ring that fit behind the head. The weight felt good, and I was able to piss through it, too.