My first was my Cub Scout knife, a gift from my grandmother AFTER I earned my Totin' Chip. Next was an official Boy Scout knife from my folks. My troop forbade sheath knives until you made Eagle. I made Eagle, but never bothered to buy one. The old folder served well enough.

My EDC pocket knife (for ~40 years) was a Case that belonged to my grandpa until I realized I wouldn't want to lose it to TSA. I put his in the safe-deposit box and bought another.

The Army provided me a bayonet, which no one wanted back, and that was it until I bought a Buck 119 a couple of years ago.