A CatCon attendee poses at CatCon LA 2023 at Pasadena Convention Center on August 06, 2023 in Pasadena, California. (Photo by Sarah Morris/Getty Images)
A Burlesque performer onstage during the London Tattoo Convention at the Tobacco Docks, in London, Britain, 24 September 2017. (Photo by Facundo Arrizabalaga/EPA/EFE)
A child holds a gun at the National Rifle Association (NRA) annual convention in Indianapolis, Indiana, U.S., April 15, 2023. (Photo by Evelyn Hockstein/Reuters)
Attendees take a selfie photograph during DragWorld UK 2019 convention at the Olympia in London, Britain, August 18, 2019. (Photo by Simon Dawson/Reuters)
Cosplayers are dressed as the Disney princesses outside Comic-Con on July 20, 2018 at the San Diego Convention Center in San Diego, California. More than 100,000 are expected at the annual comic and entertainment convention. (Photo by Mario Tama/Getty Images)
People dressed as mermaids and mermen take part in the group swim during the MerMagic Convention at the Freedom Aquatic & Fitness Center in Manassas, Virginia on March 4, 2023. The event bills itself as the “World's Largest Mermaid Convention”. (Photo by Joseph Prezioso/AFP Photo)
Steve Shirts, aka “Strike Pony”, left, gets a hug from Amber Snyder, aka “Ditsy Dots” in Baltimore, MD on July 8, 2016. Both are from Suburban Chicago. BronyCon is the world's largest My Pretty Pony convention. Featuring cosplay and fan events, the annual convention was held at the Baltimore Convention Center. (Photo by Andre Chung/The Washington Post)