From there I printed off a BOO! sign and used chalk to color it on the back of the sign. This makes it easy for the traced letters to show up on the black.
My daughter colored in the back of the paper. I traced it then painted it in.
Immediately after painting it, I had my kids sprinkle g litter all over the sign so it would stick to the wet white paint.
I drilled some small holes to make a twine string to hang it from.