tub/shower combo with no doors/curtains I just LOVE the idea of NO tracks or doors or anything to get all gunky! I hate the shower/tub situation usually, but I could possibly deal with it if it was a sunken bath.
Color Changing Tiles - Turn your shower into a living hotbox, or at least pretend like it by installing these heat sensitive tiles on the walls. Stand in awe the next time you shower as they react to the heat and slowly change colors. for-the-home