A little boy's chalkboard

My godsons birthday is coming up. He is turning four. Last night inspiration struck and I decided that I would make him his very own chalkboard. He has started expressing an interest in drawing (they just look like squiggles at this stage though) but thought this gift would be perfect to help him develop his artistic talent.

This is the finished product

Here are the basic instructions, very plainly put as I'm not feeling 100% today...

Materials:
Piece of wood
Colored background paint (craft paint works better than spray paint) & chalkboard paint
Picture of a car
Contact paper
Craft knife
Paint pen
Chalk

My rough idea from last night when inspiration struck

1) Sand down the edges of the piece of wood. I used an A4 piece of Masonite in landscape.
2) Paint a base-coat or spray with a primer.
3) Wait for base-coat /primer to dry.
4) Paint background color. Mine is blue.
5) While waiting for the paint to dry, print out or draw a picture of a car.
6) Copy/trace the picture onto the back of the contact paper (the paper side) with a piece of carbon paper. The image on the board will be in mirror image to what is copied onto the back of the contact paper so if necessary print out your image in mirror image.
7) Cut out the car design with a craft knife.
8) Place the contact paper with the cut out car onto the wood and cover any exposed areas with scrap paper. Ensure the contact paper sticks firmly to the board to prevent as much chalkboard paint as possible from bleeding through.

9) Using the blackboard/chalkboard paint, paint the silhouette or picture of the car. A few coats may be necessary, especially if you used spray paint.
10) Remove contact paper and scrap paper and allow the paint to dry completely
11) Trace the image of the car with a paint marker to cover up any areas where paint may have bled through or the contact paper removed bits of background paint. This also just produces a clean finish to the car silhouette.

12)  Using your paint pen write "vroom" or any other personal message on the board. Not on the chalk-boarded car as you want to keep that space open for the fun drawing with chalk that this gift will hopefully inspire. I chose "vroom" because my car suddenly looked more like a skew beret than a car to me and I didn't want my 4 year old godson or his parents to ask me what it was supposed to be a picture of.
13) Add detail with a piece of white chalk to the car to ensure there really is no confusion that it is a car. This also just finishes the gift nicely. Yes it is chalk and will come off when he cleans his chalkboard but by then he will know it's a car and will be to busy creating masterpieces to really care.