What I used:
-A frame with glass (I got mine from Ikea. They were the only ones who sold a square in the size I wanted).
-spray paint (not needed if you don't want to change the color of frame).
-scrapbook paper or fabric with a printed pattern you want to use for you design.
-etching cream ( I used Armour Etch)
This is the frame I used, I painted it white.
I used this piece of scrapbook paper for my pattern.Step 1: I removed my glass from the frame and applied contact paper over the top. I left a small boarder around the outside. Step 2: I lined my scrapbook paper up with the corner and started cutting away the negative space in the pattern with my exato knife. I traced the design with the knife and then peeled it away. The scrapbook paper was about 1/4 of the size of the glass pane. I had to move it around to finish the pattern.
After rinsing the glass, I dried it, cleaned it with windex and placed it back in it's frame.