Bars to go to in costume on Halloween?

I'm in Gloucester County but willing to go to Camden, or even Salem County.

Just looking for a fairly chill bar (could be a dive) that is having a costume party. I don't really wanna show up to a random one covered in fake blood if nobody else will be haha.

Specifically DON'T want to go to Philly, I know there's plenty going on there. Thank you for your help!!