I preferred using toothpicks as a 5 year old kid, to lay out roads and cities, and legal parcels, on the living room carpet. Sometimes the array would cover an area of like 100 square feet. I was annoyed when my parents "tore them down." I did make them give me the toothpicks back for later use. A city destroyed is merely an opportunity to create another. 
Personally, I liked masking tape and a Sharpie (and boxes and such); I'd create airports on the carpet and add accurate labels, then use it as a base for my toy planes and Rescue Heroes vehicles.
It was silly to make small spaceships that way. I reserved this kind of stuff to those I could sit in and pilot myself.
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