There are more than just games on itch.io and I don't know the site's mission goal but there is comics and other things available.

So, are there non-game jams? Me and my friends over at the Fold Up Temple Discord have hosted 2 "Paper Jams", which are like game jams but for papercraft/papertoys! (Links for more info: https://papertoys.fandom.com/wiki/Paper_Jams)

I am reading thru the Jam ToS and when I clicked on "If you would like to do something custom then don’t hesitate to get in touch." but that only linked me to the general support section. So I decided to put my feelers out here for suggestions. It may be that I don't need anything custom or special.