Railings, shutters, sun shades and other surfaces with separate-but-repeating elements are all potential canvasses for this unique semi-secretive approach to street art.

Zebrating is the German artist group behind these pieces, carefully calculated, printed and glued onto surfaces with a balance of color and simplicity that lets them stand out but seem also like part of their environment.

Though sometimes seen in process and stopped by the cops, this crew continues to paint their lenticular-style pictures both on public urban surfaces and in more sanctioned venues like museum galleries or approved architecture.