Bacon Fest (Beer Garden, Bacon cooking contest, Music)

Pleasant Street Block Party (shut it down and turn it up!)

Beach Party (truck in tons of sand, shut down a street, have music and food, sand castle building contest)

Slide the City (http://www.slidethecity.com/)

Large Fair (see Cornish Fair, perhaps at Barnes Park)

Halloween Haunted Walk at Moody Park

City-wide garage sale

Pleasant Street Movie Nights (shut down the street, let restaurants seat and serve into the street)

Progressive Dinner(s) (start at one restaurant and wander to the next. Different courses at different spots.)