kinda thinking mills, maybe a conveyor belt... and i'm curious about making a steam engine (running on liquid nitrogen).thoughts? some ww2 guy wanted to build an aircraft carrier out of pykrete (ice 14% sawdust)
try a hotel ;-). If you live in or are going to a cold climate, an ice house could be useful. You could give it power with the steam engine, and use the electricity to run a small heater, xbox, and other necessities. (i don't think a fridge would be necessary) I heard some dude actually made a working ice house like that, but it ran on solar power.