pushpin

n.

A tacklike pin with a large head that is easily inserted into a wall or board.

It has a handle-like cover of plastic, which brings the pin out of the wall, allowing quick and easy removal from surfaces.

Synonym:

map pin, drawing pin, thumbtack.

thumbtack

n. American English

A short nail or pin with a large, slightly rounded head made of metal which is used to fasten documents to a background for public display and which can easily be inserted or removed by hand.

British English: drawing pin.

Synonym:

map pin, pushpin.