Title says it all. ^^
Some details on a nearly-finished jack, ready to be put into it's final position.

The white little thing looking like a beak is what I called before the "plectrum"
Actually, the real name is a quill ^^'
On ancient harpsichord, these were made out of feathers.
Mine are just in plastic, but I've heard of a harpsichord-maker who uses sea-gull's feathers to make the quills.