I need to set up a classroom as if Pirates have been in.

[blueberryboybait]

Our Reception class are doing a pirates topic, we are taking them on a walk/nature treasure hunt to the local park where they will have their morning snack before coming back to school.

I would like to set up the class so it looks like pirates have been in, taken the snack and left a map to find it.

I was going to put the map in a bottle and leave it hanging from a hook above the board, maybe a big jolly Roger on the carpet.

Any other ideas would be greatly appreciated.