Questionable Content

I've just read all of questionable_content_feed over a week or so. For some reason I'd never read it before, now I'm hooked. What I'd like to know is if there's any way to give the author money that isn't a regular Patreon payment or buying a T-shirt or something. Is there a tip jar on the site I've somehow missed, or something of the sort?

Sorted thanks to timill - it's in the teeny text at the bottom of every page!