Here are some ideas to enliven your event.
This character can be a lone roaming walk about presence or an aerial circus piece with music.
Jambes du bois
These four unfortunate french woman each have a wooden leg from various mishaps in life. They perform a morbidly comic dance and roam as an obscure and larger than life presence in the crowd.
Made by the incredible crew at HMS Sweet Charity and debuted with The FlamingGods. These three birds have a routine act to perform and can improvise to any set you throw at them.