What we at Adult Profit have made is a TGP that webmasters can send traffic to using their Adult Profit webmaster ID and they will then get credit for all sales from all galleries and sites linked from the TGP.
You can see it in action here:
http://www.dailygalleriesfree.com/thumb.php?id=1 Please note how this webmaster ID (id=1) will follow you on to all galleries and sites and even on the banners on the site. This means that any sales here will be credited to the webmaster who send the traffic.
There is more explanation and a trade sign-up form here:
http://www.dailygalleriesfree.com/signup.php