Here is a list of customs that are indigenous to the Smurfs: * Smurf hat * Smurfberry * Sarsaparilla * Blue Moon Festival * Christmas * Easter * Imitate Festival * Smurf Autumn Carnival * Smurf Day * Spook-A-Smurf Eve * Unhappiness Day * Valentine's Day * Smurf language * Smurf song * Nature worship * Death * Blue moon, which in the comic books and the cartoon show usually indicate that a baby Smurf is arriving. * Dance Of 100 Smurfs * Smurfball