Kansas City is home to a surprising number of celebrities, including Paul Rudd. The Ant-Man and the Wasp star and several other famous faces (including many from other places) spent the weekend there for the Big Slick KC, a charity event benefitting Children’s Mercy medical center.

One of Rudd’s contributions was a Captain America shield signed by fellow of his Marvel Cinematic Universe costars, which sold for $53,000 at auction. All of the proceeds go to Chilren’s Mercy, which provides pediatric cancer treatment at no cost to families.

It is great to see our favorite fictional heroes having the power to make a genuine impact in real life. For more on the Big Slick KC, visit their website.

Ant-Man and the Wasp is in theaters July 6.