It's not a costume but.... I just got back from a trip to NYC where we found a bar that offered bacon vodka. I smelled it but couldn't bring myself to sample it straight as the smell was stomach-turning. It also seemed to be thicker than your average vodka and had some bacon sediment floating in it. A friend did have a bloody mary w/ 1/2 bacon vodka 1/2 normal vodka and let's just say I've tasted many better bloodys.

PS. I love bacon.