Start with a clean dump truck and serve "wrecking balls" (melon balls) for snack! Serve with some "wet cement" (milk) for a creditable CACFP snack! Serve cup melon and cup milk to each year old for a creditable CACFP snack.
Construction barriers from orange cups, white electrical tape, and orange construction paper. This would be awesome in a construction themed classroom. Decorations for the room or perhaps add student names and use for something else.