Might I instead suggest a 'supporter' icon somewhere obvious?
How I want it to work: I click on the icon and get taken to a page that shows whether I've donated. If I do, I say how long the donation is for. (E.g., I choose $10 and 6 months.) My icon goes green across all my machines and I feel smug. In 6 months, it looks sickly, so I click on it and donate again.
How I want it to work: I click on the icon and get taken to a page that shows whether I've donated. If I do, I say how long the donation is for. (E.g., I choose $10 and 6 months.) My icon goes green across all my machines and I feel smug. In 6 months, it looks sickly, so I click on it and donate again.