If you have everything ready, it shoult take you 1 morning to do it. It looks very nice and it has an "industrial look to it, Some indirect lighting will make a shadow that looks like a cogwheel. Try your own mirror shapes and staple orientation, I am planing on trying staples at different lengths to have a sun like frame look.
Step 1: You will need
Mirror (any size... and shape I guess)
Piece of cardboard or wood. (Please reuse and recycle) has to be big enough to cover the mirror and at least have a 10 cm edge all around.
Glue (I used “Liquid Nails” adhesive at ~3bucks per tube)
Hot glue sticks and a gun.
1 pack of staples, I got a 25 000 pack from Staples for like 5 bucks.
Some cord or wire to hang it.
heavy duty scissors
x-acto knife or equivalent
A T-shirt if you are planning on taking pictures of your project. (sorry)