If you prefer button downs these people have some cool ones but a little outside my price range.
https://www.amazon.com/Santa-Claus-...ix=christmas+shirt,aps,181&sr=8-33&th=1&psc=1
https://www.amazon.com/Santa-Claus-...ix=christmas+shirt,aps,181&sr=8-33&th=1&psc=1