ummm that's a really simple prop...what exactly are you looking for?unless it's for an extreme closeup why not just use a standard poser "box" prop?scale it's dimensions to the right size and shape make it white or whatever color soap you need and viola!,one bar of soap?if that won't do for your needs,post a bit more info,if it doesn't exist already,i'm sure i or someone else can whip out a "bar of soap" prop from 3dsmax or whatever prog pretty quickly,it should take all of several seconds to make a box and round the corners off,bend it a bit or whatever it needs,unless like i said you need extreme detail like indented logo lettering or something this is a really simple shape