It all began with a an IKEA board which I had bought at a discount. I use its white side when I need to take pictures and I need a white background.
My little boy adores to park, drive and arrange his toy cars. The problem is that this takes place all over the house. I few days ago I remembered having this board and stared sketching on it with permanent markers. And here it is, several days later it looks completely different. From now on, I am going to use the back of it, too :).
We have used black and white permanent markers, and thick felt tip pens for drawing.