As for Doodlebugs- I've seen a few around East Tennessee. We had an old one with the front of a T or an A. The thing has been setting for years and I haven't paid it much attention, as most of the roof has fallen in on it.
As for finding stuff, I seem to have a knack for it- esp. on ebay. I found a set of three original bumperettes and the chrome bars that go in between them on ebay. These are something you just can't find. I bought them. A while back, I was searching for info and pics of 1960-1963 Chevrolet trucks. I ran across a guy with a 61 3/4 ton, who was bastardizing it. He wanted a set of 62 3/4 ton emblems. Now, these emblems were unique to that year and model. I searched our junkyard and others around ET for those emblems and parts for myself to no avail. He must have been looking for those emblems for 3-4 years, never finding them. Just on a lark, I did a search for 62 3/4 ton emblems. I found a set of nearly NOS ones. Emailed the guy about it, and he had them bought within an hour. He said he couldn't thank me enough.
Lets see. A good find was a set of 1939 Nash headlight lenses, nearly NOS for $15.95, $29 shipped. Usually retial for $130 a set, plus shipping. Some unfortunate things happened to them, though. Got them home to find out they were broken, and only insured for $50. Made me sick. At least I made $21 in the deal, but I would have rather had the lenses. My best find would probably have to be a good 1939 Nash LaFayette inline 6 engine. Had to drive to Manassas to get it, but I think for a total cost of $300 (total cost of trip up there and parts), I got an engine, trans, bumpers, radiator, brake parts, some hubcaps, and a handful of promises he'd send me some more parts. Also the 1960 GMC 7000 B model I stumbled upon after my uncle had searched for it for 20 years, and we got for $250.

I had another find, but I'm still not sure if I got ripped a new rear end on the deal. I bought a 1939 Nash Ambassador 6 street rod for $1,776. Plus a ~$500 trip to go get it. It does have a good steel body, and a built 351 Cleveland, C6, Mustang 9", Mustang II front. You all tell me if I got a good deal. The pics of it are in my gallery.