The Opposaurus Jrs have been tasked with building construction vehicles for preschool. MY first thought was a popsicle stick and toothpick tower crane. My wife does not agree. We need to do 2 vehicles (one for each child

materials are standard household crap such as paper towel rolls, milk cartons,etc....

I guess these need to look like they could have been constructed by 4 y/o’s

when i was in college i made re-usable plastic formwork to build a multi-story building out of plaster