I don't know if it was ever posted here, but I'd like to show you those bizarre helical traction vehicles. Apparently, some people made screw propelled vehicles in the Ford T era and some australian company named "MudMasters" make one now. Enjoy the weirdness:

Keep Oppo Weird: Screw propelled vehicles

Keep Oppo Weird: Screw propelled vehicles

Keep Oppo Weird: Screw propelled vehicles

Keep Oppo Weird: Screw propelled vehicles