when the water sprays, the air pressure will make the water shrink constantly, so the water will always stay on the top of the can. this is probably too simple, but i'm going to guess that they were placemats. one piece that does not show a human form is flock, a sculpture with environmental concerns that sees five birds perched on an abstract form. learn more about us .. factory direct sale wet pan mill/wet pan mill for sale · factory direct sale. you are here: home / group deals / office depot $20 gift card for only $10! 