Merch. Because why not.
What I have when it comes to merch is something simple. It’s just the site’s logo on a plethora of products.
You can see what I have by going to https://www.teepublic.com/t-shirt/1863842-the-shiny-hunting-helper?store_id=110307 and browsing my wares.
Any and all sales from that design helps the site directly.