Basically make a bunch of different kinds of coffee cups out of construction papers. I found stencils online for 3 types and made them out of different things. Don't forget to decorate them!
Use a white background and draw "steam" coming from the coffee cups. Name it "Favorite Winter Memories," or "Favorite Things About Winter," or "What did you do for Christmas?"
Leave some markers and wait to see what gets put up there! Super easy!