Tuffits: Concrete stepping stones which look like pillows! Concrete stepping stones that look like vintage pillows. Get old pillows, lather with petroleum jelly, cover with plaster of paris. once hardened, remove pillow and fill mold with concrete!
One of my favorite things. It tessellates but doesn't have a repeating pattern -- blows my mind. I want it as a bathroom floor or something. These look like cement tiles. I should get on figuring out how to make them.