The frame was a plain wooden one I found at Goodwill, housing a rather ugly print of ducks. :) I took the print out, lightly sanded the frame, and painted it with a champagne gold acrylic paint. Next I took an old toothbrush and dipped it in a darker gold paint and rubbed that along the length of the frame to give it a little dimension. When that was dry, I diluted some dark brown paint with water, then dipped the toothbrush in, flicking it onto the frame by running my thumb over the bristles in the opposite direction of where I wanted the paint to go. This was all to give it an aged look, and I loved how it turned out.
The wire screen was salvaged from some windows that someone had put out on the curb for the taking. It's the fiberglass(?) type -- not aluminum -- I'm not really sure what I'm talking about here but it is pliable and strong. :) I used a staple gun to attach it to the frame. It ended up not being quite as taut as I'd hoped but it works.
Now my earrings are a little easier to see, instead of being thrown together in a jewelry box. Next I need to figure out a way to organize my necklaces!