Head into Fortnite any day of the week and in its real-money virtual store, the Item Shop, you'll find a handful of character outfits, or "skins," on offer for a limited time. Superheroes like Wonder Woman and Captain Marvel, athletes like LeBron James and Harry Kane, streamers like Ninja and Loserfruit, and so many more return every few weeks or months and are routinely spotted in any pre-match lobby performing TikTok dances, lighting the Bat-Signal, and singing the internet's unofficial...