EASY and FUN!!
I just did this activity with my son the other day and it was so fun.
What we did:
1.We took a roll of packing paper and cut a piece off. (if you have multiple kids make it large enough that they all have room)
2. Then we just started drawing the town with a black marker.
3. Color the town.
4. Get your hot wheels out and drive around town.
My son is only two so he mainly just scribbled but this would be a super awesome activity for kids just a little older. I colored in random things in the town so my son could get the idea, if he was older he could choose what he wanted to color in. He had lots of fun driving his cars around, they didn't always stay on the road but that is perfectly okay. If your kids are old enough let them do it all by themselves. They can be as creative as they want and it takes a good amount of time so it will keep them busy. If your kids are still younger just roll a piece of packing paper out and let them scribble all over it. Or draw different colored circles on it and have them jump on the circles. There are a million different things you can do with a roll of packing paper. Let your imagination run wild.