these are called Anamorphosis Paintings and they are nothing new they've been around for centuries, in the 1750's for example this was a way of showing support for the Jacobite Bonnie prince charlie when all propaganda was banned a small portrait painted just like this would be placed in the middle and if your friend was who he said he was he would produce the bar and you could talk 'rebellious deeds' so to speak. Its a very clever way of painting though and I would love to know who 1st thought it would be a good idea........