There is one "Set" of knives I am particularly proud of. The Bob Kasper (and made by CRKT) Folding fighers, both the small AND large! Oh and I also have the fixed blade version with both sheaths.

They're nothing fancy, but just having all three seems special to me. Oh and they are nice, the large folder is a BEAR! The small is actually very pleasurable to carry and the fixed is "Just right"!