The subway ad mash-up artist has been hard at work underground. Here's some of the latest creations, including a shot of a poster he was still working on when someone snapped a picture.......

Subway ads are always undergoing transformation, but And I Am Not Lying recently spotted a more advanced form of subway ad art. He reports:Those great big billboard ads you see on the subway are nothing but giant peel-and-stick Coloforms, really. I love the accidental collages you see when people randomly pick and peel those thing like they’re great big scabs, and I just knew it was a matter of time before someone started making art......