This isn't 20 questions. Tell us everything that you know about the event. They someone might be able to help. If you just give three words and assume you'd have an encyclopaedia thrown at you, you may have to rethink.
What kind of event? Awards? Celebrations? Party? Dinner? Wedding?
Location? You say country club, where? Arizona? The Italian Rivera? Sweden?
How long will it last? A 2 hour meal? An 8-till-late regatta?
How much time do you have? Do you need a shirt and tie tonight, or can you have a garment made bespoke in the next 3 months?
For the love of God, if you want help, then give us something to work with!