My three would be:
Cape Hatteras the First
Coquille
Fort Niagara

The garage sell aspect is the only way I will ever have the first two.

While in Atlanta I walked over to where other collectors were getting their HLs signed. One older, very Southern lady, had about 6 pieces to sign. One of them was an original Hatteras. She had no idea it was worth quite a lot. Bill told her to hold onto it. I'm afraid I will only be able to see ones that are owned by others.
Derith