I was recently commissioned to work directly with a 14 year old skateboarder, here in Derbyshire, UK, for his birthday, in laser engraving his own skateboard, with his own design. After a few iterations he finalised his design and presented me with this sketch below. We scanned in the sketch and converted it to vectors, using both GIMP and INKSCAPE free software. Once in vectors, I lead him though fine tuning the design and adding a few extras, like the moon and batman symbol.

City Scape Drawing