The Collaborative International Dictionary of English v.0.48:
Paster \Past"er\, n. 1. One who pastes; as, a paster in a government department. [1913 Webster] 2. A slip of paper, usually bearing a name, intended to be pasted by the voter, as a substitute, over another name on a printed ballot. [Cant, U.S.] [1913 Webster]WordNet (r) 3.0 (2006):
paster n 1: a workman who pastes 2: an adhesive label [syn: gummed label, sticker, paster]