Donny DIY:I made this mechanical tow behind mower for my ATV basically from junk. Although I had to buy the rear axle, a few bearings and some V-belts, this project was made from scrap metal and other recycled materials.  

Preston:I like it. But instead of all that weight over the tires which is cutting groves into the ground perhaps put spikes on the tires? This not only will give you the traction you need with less than half the weight you have, but also aerate the lawn.

Burn Time:Love this video! my dad tried something like this when he was a kid to pull behind horses but his used sickle sections and a disk and a hit and miss engine to spin the cutting blades