Rec!
The Hall of Heroes by Pavonis: In which Severus Snape finally gets his just deserts_ or does he? Contains mistaken identity, Giants, horned helmets, mead, the Ballad of Severus the Small and His Tiny, Tiny Stick and the final fate of all good Death Eaters.
I was initially a bit wary after seeing the summary - fearing Snape-bashing or complete slapstick. Totally unfounded worry. Go read this! It's hilarious, insightful and features a great Snape-voice. One of the best humourous takes on Severus Snape and the HPverse I've had the pleasure of reading! And the digs at the "good" and the "evil" side made me alternately nod my head fervently and smile spitefully.... If you want to read only one Snape gen-humourfic dating post-HBP - go and read this one! You won't regret it ^_^