Buying the current Humble Bundle supports Sweet Farm, which is an animal sanctuary also promoting veganic farming and plant-based eating. Under Choose where your money goes, it is possible to have 100% of the funds to go to Sweet Farm.

The current list of top contributors already contains usernames like GoVeganCowards, Go Vegan ftw! :) and VeganIsEZ.

https://www.humblebundle.com/games/sweet-farm

https://www.youtube.com/watch?v=tee-FK6r00Y