Have you heard about Freetail Brewing Company's "Conserveza" beer? Yes, it's named for "conservation" and "cerveza." Pretty clever, really. It's been around since the end of last year but I just now heard about it.
It's an American Blonde Ale available at 50 HEB stores and some bars and restaurants in town. Portions of the proceeds benefit the San Antonio Zoological Society in support of its conservation and research projects.
I'm not a drinker, but I wouldn't mind buying a 6-pack just because it's a good cause.