Bartending Halloween Costumes

Halloween costume ideas?
need a good costume idea … I am barman a big party and I need to be avoided, but that will be unique
Cassandra Peterson – aka "Elvira, Mistress of the Dark." She sports long black hair (a sort of "cut stuffed w" / Bangs), a black dress w / a split in the side – high in the thigh, and biased towards the elbow sleeves, very tight and shows a lot of cleavage. She is tall and full figured. It seems a cross between a vampire and a witch (w / o the pointed hat) – a kind of Gothic look. Good luck and be safe.
Best DIY Halloween Costumes