Custom signs could be expensive. Metal custom signs are even more expensive. We Lasers offers to its clients a variety of affordable finishes for plastic signs including metal looking finishes. On that sign we used brushed aluminum lamination on acrylic and it looks exactly like the aluminum sign.
Just finished assembling this laser cut sign for a New York event company Bollare. Material: white opaque 1/4in acrylic glued to 1/4 in clear acrylic base.