Step 1: Gather Materials
Wire Stripper(or Needle-Nose Pliers)
Tape
9-Volt Battery
Punch(For starting the metal off)
I use the wire stripper/cutter because it is easier to use for the metal.

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http://static.flickr.com/11/96990454_23d4e93860_m.jpg
That's the label for the macro button, it's usually either a switch on the side of the camera, or its one of the settings on the dial on the top (on nicer cameras).
Though, after taking a look at your instructable again, it looks like you may have found it.