The hinges of the glass doors to the student bulletin board creaked slightly as Cutty opened them. He was doing the thing again. The thing where he advertised his wares. He'd made a considerable profit last year, being as how he was one of few students to have stocked up for the unexpectedly long, harsh & entrapping winter. He pulled the little advertisement from his robes and stared down at it admiringly. The witch he'd had made them was really quite good.
A sticking spell was placed on the underside of the business card and he stuck it fast to the bulletin board.
"
Geminio!" He aimed his wand at the card hitting it with a self-replicating spell. Touch it and take one of the copies produced by the spellbound item.
With a smaller, shorter creak, the cabinet was shut and the fourth year was on to other business.