Here comes the open source Snow Plow Robot (As it is here, it would probably be sand, actually would make more sense than the large manned gas powered plows, & with the amount of sun here, this may be more viable)
These are the plansto build your own Magic Carpet go kart. The plans are 44 pages long and include detailed drawings, pictures, component part numbers, recommended suppliers and more.THESE ARE THE BUILD PLANS ONLY, Not an actual vehicle.
We still grill a lot even though it is cold outside, yet we see most of us buy electrical or gas grill directly, and seldom do we build ourselves. Making grill by ourselves looks complicated but after seeing this perfectly fit cinder block grill by Morgan