A Scottish corkscrew.
It seems (according to the internet) that corkscrew collecting is a serious and sometimes costly business.
With a vast number of blogs, clubs and collections on the net, helixophiles can view an incredible variety of devices to remove corks.

This figural, direct or straight pull, wire helix wormed corkscrew came from Jane in East Sussex.
It has a head carved from an avocado nut, a little Scottish bonnet called a Tam o'Shanter and a plastic nose.

Sadly it's nose looks to have been slightly broken, which explains the lugubrious expression.  My own nose however, is large and squidgy and has survived a number of attempts to break it.