The best deal I've heard of wasn't one that I personally got, but one that my friend got and then proceeded to brag about for a while. He found a Scotty Cameron at a garage sale, minor rust on the sole but no dings and otherwise in perfect condition, for $4. With a little gun oil and scotch brite he got it looking as though it were brand new off the rack, all for only the $4 at a garage sale.
I told a guy I was playing with last year that was suffering from gout, to cut out the cheese, red wine and red meat. He hunted me down this year ecstatic and thanking me for helping him get rid of the gout he was experiencing. Didn't cost him a thing...that was a golf deal.