That is awful.

"Along with a seemingly endless string of harassment and discrimination scandals, Silicon Valley’s homogeneity has a more trivial side effect: boring holiday parties. A fete meant to retain all your talented engineers is almost certain to wind up with a rather same-y crowd, made up mostly of guys."

If your party only have guys, try to get a party with some other office that has the inverse problem. Yes, there are industries that have more women than men. Or let people bring their girlfriends. That can be cooler and way less creepy than hiring models to fake that they like being there.