Halloween // Wedding Halloween Costume Suggestions?!

Hey All, Me (32/M) and my soon to be husband (32/M) are getting married in New Orleans on Nov 1st. However, we are having a Halloween Costume party as a welcome party the night before.

What do you think would be a great couples costume for the two of us guys? I like to make mine a litter sexier than his and open to all ideas.

Also, what should our groomsmen/ bridesmaids dress up as? Any ideas how to match us? Thanks