No, not as a garnish...you know how vodka is fermented potatoes, and wine is fermented grapes, and beer is fermented...uh...barley? I think beer is a family of fermented things, there's rice beer, and barley beer, and wheat beer, and so on...and tequila is fermented agave -- so is there one that's fermented olives? I had a really good olive last night, and I imagine it would be good, but perhaps there's something about it which prevents it from happening (quantity?).