Tiling ideas for the bathroom

While visiting with my mom on her birthday, I found myself in a toy store. My mom loves them, and so do I, and I found a great "art toy" called Trapecolo. It's a set of trapezoidal colored tiles and a hexagonal tray, and with it you can create designs like this one, which we made:

The difficulty I have now is that I can't find trapezoidal ceramic tiles suitable for a tub surround. There are so many neat patterns that can be made -- abstract ones, geometric ones, and even this one which Julia made:

I think it looks like a dancing ant, but I think that may just be all the lead I've inhaled.

If you have any leads on trapezoidal (or even equilateral triangle) tiles, please let me know.