The masquerade, huh... it's pretty different from the main event, since there's no set costume theme. But if it deals with masks, maybe some sort of disguise or cosplay? I have plenty of those made at work.

Cosplay, I mean. [ He doesn't want to sound suspicious by saying he makes disguises? Even though he does. ] Of course, if it's more akin to something more formal, there's always a fancy dress...

Pink and white would look good on you. Also maybe the lighter shades of blue, too.