Man it is hard to do. It is about the same amount of work to spend $200 as it is $2,000,000, and that is really tricky for community supported (free as in beer) versions. If there is a commercial license - like one has AGPL or paid something else, or extended support for versions - that is much easier to purchase.

Donations are indistinguishable from embezzlement or corruption. I'm not saying they are the same thing, but your company accountant can't tell the difference.

I'm happy to buy something from you. But you have to offer me something to buy, so I can satisfy the accountant.