"Dutch graffiti writers have developed a new form of high-tech graffiti using a mobile LASER tagging system. Here they paint entire building blocks in Rotterdam".
This looks cool. Also makes me think this is what all Trump's buildings are missing. Someone doing just his hair on the side of all his 'biggest, greatest, most magnificent' buildings. Maybe knock that ginormous ego down a tiny peg - nah, probably not but worth a laugh ...
Skyscraper Laser Graffiti