For fanart related to the older cartoons produced by the Hanna-Barbera studio (before its acquisition by Cartoon Network); cartoon series such as the Flintstones, Scooby Doo, the Smurfs, and so on, many of which are currently aired as part of Cartoon Network's "Boomerang" channel.

See Wikipedia for a more complete list of Hanna-Barbera produced cartoons.