That's not really a functioning propeller?

A. if its a functioning(Battery powered) automated propeller or if its a part

It can be used for miniature windmills,planes, or just a cool figure to be around.

B. Its not a functioning automated(Battery powered) propeller then its manual which againg can be used for the same stuff such as the windmill, plane and figure.

• it can also paint brush/pencil holder of some sort

• Tooth pick holder

Just a small cylindrical empty container.

Anyway that is my guess.

This is extra by the way.

Also you should check out the cool bamboo or string instrument propeller where you use a bamboo, a piece of string and a of course a propeller.