You can take the guns away from boys, but then they'll just make them. My kids are all boy. They love to play. They don't even need toys generally, they just make something up. On Friday, which I didn't get any pictures of, Austin made a "mini golf" maze out of the fire wood, and used a long branch for a club, and they found a softball that they used for the golf ball. It was a great use of imagination.
Look at the toasty marshmallows. (don't look at the dirty hands)