I think a lot of p*rn agencies look to cast circumsised male actors, as it's not only more hygienic, but also makes their penises look bigger on screen. So, if you were to combine the lack of a foreskin with a flat stomach and shaven pubes, magically - you'd have a bigger c*ck (albeit only visually).
Then you would want to combine that with a small petite actress, around 5-5"7 ft tall, give her some high heels so the viewer will be decieved by the scale of the actor's penis to the woman's body.
Lastly, you could get somebody walk through the door like Ron Jeremy, who's c*ck is so big, he can bend down and suck it, not only without having several ribs removed, but over a beer belly, too. Apart from being every single man's dream, a guy like that would only need to get the snip for hygience reasons and not cosmetic like others.
Personally, I wouldn't want it done. It can be better for cleanliness, and for any person who may wish to put it in their mouth not to have the worry of post-oral flossing, but it has negative factors as well. Without the protective foreskin, the helmet of the penis can rub against underwear and become hard and shiny, almost like a varnished nail. Too me, that sounds scary, but I'm sure there are ways to combat this - it's just never something that's appealed to me.