SweetWater 420 IPA, probably my favorite IPA. It isn't pasteurized (maybe the reason I like it so much) so you might only see it in the south and the east coast.
Or you can kick back with Muddy Waters and have you some Champagne and Reefer.
Bootnote: I've never been one to partake of the evil weed, myself. But I'm told that today isn't just Hitler's birthday, it's also a holiday. Of sorts. The kids tell me that. I'd tell them to get off of my lawn, but there's grass involved ...
UPDATE 4/20/2018 17:18: I see it's not just me: