You should use a zinc frame, because it will be sturdy enough, as well as look nice. To do this measure all sides of your project, use a fine tooth hack saw and cut the pieces of zinc, insert the glass into the channels inside of the zinc strips, voilĂ !
Purchase a frame that fits the size of your art. Frames can be ordered in any size from a framing shop; most shops will insert your art for no extra charge. To insert the glass yourself use glazier points or staples to hold the art in the frame.