You can get some CLASSIC molds custom made here.
http://www.pokerchipsonline.com/pokerchips/advertisingchips.html
I have seen some of Jim's personals that he has made for club members and IMHO there are none better. I really want these the next time I get personals. He made this one for Nate and it is just AWESOME!
It even kind of looks like Nate too... kind of... sort of... but not really.