Make some fun props for a "photo booth" (could just be a nice backdrop + volunteer with a camera + instant printer) at the event. Charge $5 per picture. This let's everyone take a fun memory home. It helps set a silly vibe and fun atmosphere at your event. :) Photo by propsonsticks on ebay.
Breakfast at Tiffanys Party Props Set - 20 Piece PRINTABLE - bacherorette party, Engagement Party, Bridal Shower Photo Booth Props