NICE ICE BABY.
LEGO blocks ain't cheap, so for the less financially fortunate amongst us, there's a new solution. Lego ice blocks. Each tray can make ten blocks at a time, enough to make, well... a very small wall, or a slightly bigger block. However the patient could forseeably keep refilling the tray to eventually have enough to construct something larger, assuming they could build it extremely quickly or lived in a sub-zero environment.