Mystery Artist Game for the art room. Encourage students to continue to learn outside of the art room, and encourage communication with parents and other friends about what's going on in the art room. Plus, Reward students for going above and beyond.
"Mystery Artist Bulletin board". (Elementary) Every month there is a new mystery artist with a few of their works and clues about them. Students put their guess in the art room to enter to win a drawing. I pick two students every month. This has really gotten students excited about learning about artists/ art history.
Facebook bulletin boards. Good way to introduce a topic? Introduce the picture, no one guesses it, introduce facts, no one guesses, introduce name? Then people need to guess the topic? Could be fun! But may be labour intensive, with different classes and topics. Definitely something to keep in mind though