You've stood before the bathroom mirror and played with your bangs before, but have you ever attempted to fashion a huge mammoth atop your head? The kind currently seen in the La Brea Tar Pits? It might take a little extra gel, or perhaps a trip to a costume store, but get on it: The Ice Age Hair Ball at the La Brea Tar Pits and Museum is on Saturday, June 4. Think "prehistoric" for your costume and think "saber-toothed cat" for your hairstyle. And think of this: The ball helps the programs and operations of the museum and famous tar pits, which serves as one of the world's most important Ice Age fossil sites.