One of the most unique Broadway events of the year comes to Shubert Alley this Sunday, from 10am to approximately 6pm, and that is the annual Broadway Flea Market and Grand Auction. A fundraiser for Broadway Cares/Equity Fights AIDS, the flea market features two streets full of tables where the cast, crew, and staff of Broadway shows and theater-related organizations hawk their wares. These items include standard fare such as show posters, old Playbills, and merchandise like mugs and t-shirts. More coveted items include autographed memorabilia, props and costumes actually used onstage, and even baked goods made by cast members of Broadway shows. (Tip: Get there as soon as the flea market begins in the morning to get a shot at nabbing the best stuff.) A large number of Broadway and television celebrities will also be signing autographs throughout the day, but be prepared to wait in line for a little while. The highlight of the event occurs in the mid-afternoon when some of the flea market’s most impressive items are auctioned off. The auctions typically include things like rare autographed posters, dinners with celebrities, and walk-ons for TV shows and Broadway shows. Shubert Alley is located in Times Square, between 44th and 45th streets, between 7th and 8th avenues.