cotter pin
hinge or hinge pin
cut off pin to make compass
frog gig / fish spear tines
fid
blow dart tip
watchband pin
keyring
burnishing pen
mini drawing compass
mini map dividers
mini gear carabiner
when sanitized, pierce abcess for draining
hook gaiter bottoms to bootlaces
lockpick
low-voltage through-insulation electrical connector
body of fishing lure
mini chain link
pine nut extraction-from-cone tool