While helping Howard reroof his carport with corrugated polycarbonate, it occurred that an enlarged version of a Third World tin corrugated canoe might be a good look for the 2018 R2AK "Dirtbag Award."
Instructions are simple:
Lay the corrugated sheets in the driveway and then run the back wheel of the truck back and forth to flatten the corrugations where more girth is wanted. Fold the corrugated sheet around a vertical 2x4 for the stem and then a horizontal 2x8 about 15" long for use as a transom. A couple of 1x2's caulked and nailed to the gunnels to hide the sharp edge of the tin and a 2x6 is all that is needed for a thwart/seat. Roofing tar works for caulking.
Or you can build using Ondura:
https://ondura.com/products-ondura.shtml