Take a look at the floor above. Whatcha think gives it that great pattern? Fancy tile? Linoleum?
Neither. Actually, it's paper. And not some absurdly expensive bathroom floor paper, either. Just screenprinted art paper, sandwiched between layers of PVA sealant.
"Lack of funds and creative fussiness on both our parts led to an experimental and untested idea for our bathroom floor. there are no before photos, as for nearly four years, it was plywood painted with purple fence paint and spattered with various paints and adhesives as we very slowly made progress with the walls (unphotographable!).
mr lc wanted a green and white tiled floor like in the crash rooms in ER, i wanted to get some kind of patterned real linoleum, so we compromised and i screen-printed the floor!! my parents had covered a kitchen table with brown grocery bags and varnished it in the past so i figured along those lines and if it didn't work i could get my linoleum."
[via Apartment Therapy]