Green’s Dictionary of Slang

stickers n.

(US tramp) beggars who pretend to be selling sticking plaster to gain an approach to a possible donor.

[US]‘A-No. 1’ Mother of the Hoboes 43: The Rating Of The Tramps. 10 Stickers: disguised begging by selling court plaster.

In phrases

play stickers (v.)

(UK und.) to refuse to hand over (money).

[Ire]J. Phelan Fetters for Twenty 72: ‘Watch out Luggy Mick don’t play stickers with his fifty [pounds]’.