A few opera houses, at least, have embraced the idea of opera-inspired tippling. The Met has several themed drinks on their menu; "Lulu's Disposable Lover" might be my new favorite cocktail name. Seattle Opera also commissioned a series of themed drink/food pairings, of which my favorite is the Carmen cocktail, with vodka, cointreau, and champagne. (The Attila sounds appropriately dangerous.) Beyond this, I have found several delights, but fewer than I expected.