Our basement is completely unfinished.  So the most "logical" thing to do if you are going to have pillow fights, nerf gun fights and wrestle is to build an "arena" in the basement.

I told the boys to come up with a plan and let me know what they were going to do.  I did not intend to buy anything to furnish the arena nor did I want anything to be permanently affixed to the floors or walls.

They set off to plan which gave me some peace and quiet...for a moment.