Moiré effects appear when two sets of periodic structures are superimposed. By combining advanced micro-fabrication technologies and the moiré theory, we are able to obtain visually appealing moirés. Specific metallic patterns are created on one side of a substrate by lithography and etching of an aluminium film. On the other side of the substrate, an array of micro-lenses is fabricated in order to sample these metallic patterns. These new moirés can be recognized by the bare eye. They display text or symbols that move when observed under different viewing angles.