Help with Quince ideas.!?

Okay so the date of my quince is going to be July friday the 13. I know its kinda far, but were kinda planning now. Since its Friday the 13, We were thinking a sorta scary theme. I want black table cloths, Grey covers for the seats, and red bows tied around the seats. But i really dont know if it goes together. Help.! For the center piece i want red and black roses. I dont want it to look like its for halloween though. If u have any more ideas as far as decorations that would be Great.! Ohh also any ideas for a dress color to.! Thanks. (: