Sticker

Webster's Dictionary of the English Language

·noun ·same·as Paster, 2.

II. Sticker ·noun One who, or that which, sticks; as, a bill sticker.

III. Sticker ·noun That which causes one to stick; that which puzzles or poses.

IV. Sticker ·noun In the organ, a small wooden rod which connects (in part) a key and a pallet, so as to communicate motion by pushing.