Ricky has a good post about the rake he made. I picked up a de-thatcher at TSC a few years ago at years end. It did not do well so I decided to improve it with concrete blocks and double up on the spring tines. The replacement tines were about 5 bucks each and had to be ordered. The identical tines in stock were 1 buck each and painted green. Something to think about if you're going to follow Ricky's design.
47 Cub (Glenda)
52 Super A
62 Cub (Genie)
In all things know which way the wind is blowing.