'Do chess players dress up like cosplayer's do?' was a question I was asked just the other day. 'Of course not' I replied 'What do you think we are, nerds?'.
Turns out I was wrong, and it is possible to get dressed for chess, or at least as a chess piece.
Just in time for Halloween you can get a full size adult Chess King Costume from Amazon. And for the chess playing lady in your life, you can even get the matching Chess Queen Costume. There is even a smaller costume for the kids.
(Disclaimer: I definitely have no commercial relationship with any of this)