I recently ordered a Brinly-Hardy 48in dethatcher from Home Depot on-line; $99 with free shipping. It is designed to be a tow behind, but I really wanted a 3-point hitch dethatcher so I can back into some tight places in the yard, but they are way too expensive. So I put it all together, leaving off the tow bar parts:
Then I fired up my little welder and cut-off saw, and built a receiver hitch mount with some square tubing and flat iron:
Once I got it all painted and put together, I mounted it to my heavy hitch and voilà ("wallah" if you live in the sticks) -- instant 3-point hitch dethatcher:
It really works great! :fing32: