It should take around an hour to make! I made the one these pictures are of in half an hour, but I've done it before!
This can probably be adapted to work with an iPhone, I don't know, I don't have one!
the design turns out to be relatively similar to the Glif.
Step 1: What you need
-one altoids tin (you actually only need the lid!)
-one pair of broken headphones (you need the plug)
-some thin cardstock
-a 1/4" 20 nut (and a matching bolt if you want to make the optional stand)
-big pliers or a vice (to squish things with)
-metal punch or a drill (if you're going to make the optional stand, you'll need to put a hole in the tin.)