Race car monogram wall art for kid's room. Would be easy to draw & paint in the road letter. Use a canvas or framed poster board. Or paint directly on a sheet of metal and add magnets to the bottom of cars so they can be moved all over the road.
The green on the walls . For our boys. LOVE the paint; our inherited bunk beds and furniture are the same wood color. Maybe have a wall papered with maps of the world? Or drawer fronts of the somewhat ugly dresser/chest?