There's a lot of stuff I wouldn't mind sending money for, such as WMF, Internet Archives, AO3, and varying creators, and/or, of course, Lemmy, but as I don't like using credit cards and online payments, I'm hindered.

I wonder if there's some card (preferably paper instead of plastic) that I could buy at the store for $10, $20, or like, and use the number as payment. I've thought of sending cash by mail to the WMF, but I'm not sure if they would take it. I sent cash to Miraheze a few years ago, and they said they got it, but they don't seem to have put it in their reports (I hope they used it for Miraheze).