My MC and her three friends are in a costume contest in their middle school as a group. Spoiler: They win. I was going to give them gift cards as the prize but Wikipedia says gift cards weren't a thing until 1995 or 1996 proper. Would gift certificates work? Or would the school just give them cash? I had leaned towards gift cards because then they could get something to a bookstore, what with being an educational prize and all.
Search: gift cards in 1994, "Gift card equivalent" "Gift certificate"
ETA: Thanks! It looks like gift certificates to the book store are the way to go.