So, I was hanging out on tumblr, and I saw this person called s92o21's post about a company named Sinthetics. Apparenlty, it makes erotic full-sized silicone figures, and just recently came out with a male doll...with detachable "accessories". I checked the site (not sure if I can post a link here; it's pretty graphic), and the penises look AMAZING. Right now, they only have "transexual" add-ons for their female dolls, but the ones pictured along with their prototype male doll look very similar. The add-ons are $250 each, and come in a number of tones (free color samples!), sizes (3-10 inches), hardnesses (flaccid or erect; basic or advanced density), back-styles (cupped for use as a packer, flat-backed " for use as a strap on...)...there's even an uncircumcised version. I'm pretty sure they all have 3-d balls. S92o21's post reads as follows (since it's attached to a racy picture, I'll just creditcopyandpaste):
"So, I'm thinking about ordering these (..excluding the doll itself). I've been looking everywhere for a realistic looking and relatively cheap uncircumcised packers and I'm set on these. The flaccid one is a little over 3" ($100) and the erect one is 7" ($250).
Those penises are meant strictly for these realistic dolls but I contacted the company and they said that they would be willing to sell the penises to FTMs to use as a packer. They've been very kind and answered every question I had. I've already ordered samples to get it to match my skin tone perfectly and once I've decided on the colour I will order the packers. And I'll be sure to review them for you guys!

"
I'm going to be contacting him for more information, but it was just too exciting for me to keep to myself for now.