A pin in the worm

A pin in the teacher

A pin in the eye of a scientist

A pin in Eyjafjallajökull

A pin at Waterloo

A pin in the brain of Mendeleev

A pin in Transylvania

A pin in the preacher

A pin in the pit

A pin in the pendulum

A pin in a tardigrade

A pin in Aquarius

A pin in a chicken dinner

A pin on the lapel of a dead ambassador

A pin in the crow