BitD I enjoyed watching a TV program about "carroyage" drawing
(since I am not sure if gridmap the UK word for FR carroyage, I use the FR word here).
Recently, while browsing to find something similar for my mini-Godzillas, I found the following site using the same concept and I thought that maybe it can be of interest for the kids of some of the parents out there or maybe even for yourself
If any moderator think this post is not enough "Graphics" related, feel free to move it to a more appropriate place.
http://carroyage.free.fr/