Our classroom was full of flies last week. (Fortunately none of them were real; licensing is due any day now.) The kids, when they arrived last Monday morning, found a hula hoop, full of tape, hanging from the ceiling in a corner of our pretend center.
Hula hoop and strand of white lights. Weave strand around and let some of the lights drop down. Use strong twist ties to keep lights in place. www.cokesburyvbs.com
hula hoop chicken tractor is probably about the size I'd need.