Apparatus and a method for making decorative tiles from container cans wherein a pair of clamp members have generally rectangular clamping surfaces between which a flattened can portion of a rectangular shape is clamped with at least one of its edges projecting outwardly from between the clamp members....http://www.google.es/patents/US4046090?utm_source=gb-gplus-sharePatente US4046090 - Apparatus and method for making decorative tiles
