>When they really laid them on heavily and thickly, they worked well enough
>for them to go back and color it in by hand. But it was pretty faint to
>just leave it as it was, even after we saw the first results and some kids
>got the point about needing the crayon to be very thickly applied. I will
>have to give the pastels a try.
I used an iron and ran it over the paper while it was folded. The crayon
melts into the paper and helps the lines get to all sides. My 'ironing
board" is a piece of cardboard wrapped in foil. It doesn't take more than a
swipe or two to get the crayon through.