The Las Vegas Natural History Museum is a local non-profit organization that I do some animal care for.
Every year they throw a black tie dinner, show, and auction that provides the bank roll for the next year.
Attendees are some of the Las Vegas Valley's most influential people, and those are the folks that would see your ad. You would also be acknowledged the monthly newsletters that are sent to museum members and supporters.
If you would like to attend the ball or make a donation, Amy is still the contact (see above).