The upcoming "trade anything" day at GameStop has sparked a viral reaction across social media, as users eagerly joke about what odd items they might bring in. On December 6, the gaming retailer will open its doors for customers to hand in almost anything in exchange for in-store credit—a move generating widespread buzz. With a footprint of roughly 2,325 stores across the U.S., GameStop is tapping into a playful moment in time for the holidays. A survey conducted by CNET found that 31 percent