[thejosh]

This is what gittip is for.

And Kickstarter/Indiegogo/Crowdfunding has shown genuine interest to help fund useful tools and libraries lately which is great.

[canistr]

I think if Git Tip had a button on a GitHub repo (a la Heroku button), this would be amazing.

[whit537]

How about the Gittip badges from http://shields.io/?