Every good spy needs to always have someone covering his back, but what happens when you have to go it alone behind enemy lines? This is a solution for just such occasions. Enter the I-C-U 007 Specs. They supply the needed 'eyes in the back of your head' that your partner would have provided. Super simple, this can be done in only 10-15 minutes or less with only a minimum of tools.
OK so lets get to it... the bad guys are lurking behind you!!
Step 1: Materials and tools
Materials and Tools
1. A pair of sunglasses
2. An old CD you no longer want
3. Duct tape
4. Tin snips
5. End cutting pliers
Step 2: Get cutting!
Put your glasses on to prevent any flying material from getting into your eyes.
Take your tin snips and cut into the CD!
What you are looking to do is to cut a small piece of the CD out, about the size of your thumb in a rectangle shape. You will be using the shiny side (top) of the CD so make sure there isn't and writing or graphics on the part you cut out. As you are cutting you will notice that there will be small stress fractures along where you are cutting. Don't worry about that right now, we'll get to that in a minute. The CD will most likely lose the back plastic panel as well but again that doesn't matter.
Once you have your rectangle cut out, take your end cutting pliers and snip the edges to get rid of the stress fractures. Now you have a nice clean edge!