I would get a bathroom rug set, but I want the whole floor covered. I also rent so I don't want to damage the floor.
I would suggest buying a remnant from a carpet/linoleum store that is big enough, cutting it out and laying it flat, but not tacking it down. The weight of it will hold it is place quite well. Have done several things like this. :)
You can redo the floor by putting tiles or laminate flooring, but if redoing it isn't an option you can just get one of then giant rugs, if it's more colourful than the floor no one will really be looking at the floor but good luck!.
you can get an indoor outdoor remnant and cut to size
How about a Hawaiian bathing room? This adorning topic will bypass with basically about any tile color. you are able to bypass very camp with it, or extra subdued. i imagine the jade eco-friendly tile might want to seem tremendous with an all-out Hawaii topic, with grass skirts, leis and hula woman decorations.