Your kids can create a whole eco town with Our Children’s Gorilla cardboard city. The fire station is made from lightweight cardboard and it’s simplicity leaves plenty of playtime up to your child’s imagination. The best part? Once playtime is over — as in for good — these city store fronts can be recycled. We also must confess we think this cardboard town could be used as inspiration to create your own eco-friendly city out of cardboard boxes you have lying around the house.