You said Hellbilly, and the first thing that popped to mind was the 'Texas Chainsaw Massacre'. Maybe that is an angel you can work?

Although I actually really like the idea of a flattened beer can as the invite. Maybe you could pull out the blow torch and singe it... or put a 'bullet hole' through it.

-handy_haunter

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~I'm going to eat your brains and steal your knowledge.