I ordered a roll of embossing aluminum from Blick Art but if you wanted to be really eco-friendly you could cut open soda or beer cans. I used paper punch to create the shapes. I have read it sharpens your paper punches to cut aluminum. You could also cut out shapes like diamonds or an owl shape.
I ordered some wooden tool kits but you could also use ballpoint pens that are not extended or skewers to "draw" your designs.
The trick is to use a small pile of newspaper to "draw" on. This soft surface allows for the aluminum to be embossed. You can work on the back and the front of each piece so that sometimes the mark is indented and sometimes embossed.
My daughter cut out an owl shape, then using the wooden tools to create the eyes and patterned feathers.
She used a nail to make a hole to string through a very thin wire. She added beads.
I can not tell you how happy these ornaments make me. Every time I look at our tree and all the aluminum shining away I am so proud
I would love to see what patterns you come up with. Please email me an image if you do try this project.