In order to get unique bathroom floor tiles you may take a look at the various pictures and photos in the renovation and home remodeling magazines as well as on the designer studios websites. The bathroom design ideas are usually popular topic to discuss on the numerous online forums, and also you can get there some important information and advice.
Floor tiles should be chosen carefully because you spend most of the time in the bathroom exactly on the floor. So it should be easy to clean and to take care of, it must have special protective coating to make tiles to be water resistant. Also would be great if your chosen tiles have a coating that protects them from the dirt and mold growth which is very common problem in the bathrooms because of high levels of moisture and humidity.
One more important thing that can make your bathroom floor unique is to have a heated floors, so it will be a real pleasure to step on them.