#KiCAD is an awesome #FOSS project that I use to update #OpenSource hardware designs. They are having a fundraiser right now.
I reached out to them asking if they would accept #bitcoin. I think I made a pretty strong case in that their developers would probably like the opportunity to be paid directly in #BTC, and if not, it can be converted for less than the 3.2% they are paying in credit card fees (although some people donate extra to cover those fees).
If they start taking bitcoin, I'll report back here and try to rally people here to donate and show them that accepting bitcoin was a good idea.