One easy way around this is to do what all the NYC foundations do. That is, give to other people's charities, and they in turn will give to yours. That is only small potatoes compared to donating to a political campaign and taking the money you don't spend on the campaign off the table tax free. A lot more things make sense through that lens. I could imagine a situation where Google who doesn't benefit from every OSS project, gives to project that Facebook benefits from, and Facebook to one's that Google does ad infinitem.