Not completely related...but, depending on your application...

I'm a developer and I recently did a project where I used a poly-resin bathroom floor. It's actually a commercial application, used primarily in professional and collegiate locker rooms. The beauty of the product is there are no seams, no grout lines, and we actually created a base board out of the same material wrapping it up the wall. Had it been in our budget we would have wrapped the entire shower in the material creating a seamless, caulkless wet area.
The stuff comes in a wide range of colors from benign to FUNKY.

ciao