I made a floating weed rake for FA last year out of an aluminum landscape rake, some pool noodles, and rope. It works alot better than a regular garden rake. It's still work, but not near as much when compared to the standard rake.

If your are talking about the cutters, here is an older thread that touches on the topic...

http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=474005

Some other threads I had on a watch list...

http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=35511

http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=220413

http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=382093

Fish on!,
Noel