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.
DIY Wood Crate Tractor Toy Box Instructions - DIY Wood Crate Furniture Ideas Projects, but instead of a tractor do a yellow and black backhoe and make the scoop a bean bag chair to give it a duel purpose!