My '61 C-29: -A roll of toilet paper in the oil filter canister -Bobby pins holding the wiring together for the heater -Speaker wire holding my muffler to the frame -Mouse nest in my heater fan -Snake skin underneath the seat (no snake though) -Chewing gum to keep one of the fuses in its place -The metal wrapper wrapped around a blown fuse to complete the circuit -A small key ring in lieu of a cotter pin to keep the 1st & reverse lever attached to the transmission -About 1/2 inch of dirt caked up in the cab of the truck. Must have been flooded out or something. Still finding that dirt in nooks and crannies to this day. Haven't done a complete tear down....yet. Someday. -Lots of old coke bottles in the bed of the truck as well. Cashed em in and made about 10 bucks.