So, my best friend lives with my husband and me and we have a Halloween party to go to on Friday. Problem is, we wanted to "theme" our costumes but we can’t think of anything for 3 people that is FUNNY. Most things we can come up with are kind of stupid… any ideas?

Ex: 3 Stooges, Three’s Company, Ghostbusters

Also, please do not suggest "couple’s costumes" we need ideas for THREE people. Thanks!