Stilts!
A Stiltwalker in a costume to fit your event usually run between $250-$400 per gig; roughly $125/hr with a minimum of 2 hours, with variations for time of week, travel distance, special props, etc. Brief "Singing Telegram" type deliveries start at $50 in Baltimore City! Masks worn!
Balloons!
Big Whimsy will show up in costume for balloon gigs and entertain the crowds while twisting balloons.