Sports memorabilia is a major part of the sports fandom that adds to the experience for fans and spectators. Memorabilia can be anything from a fifty cent helmet cup in which ice cream was served to a signed baseball. Other forms of sports memorabilia include sports cards or player equipment that was used in games. The more unique and limited the piece of memorabilia is, the more it is worth. Pawn shops and collector's fairs will often sell memorabilia, and are a good place to start collecting. However, be careful as rarer items may require authenticity from an expert or authenticator to prove they are indeed authentic.