I tried the rig where the camera was bonded to the shirt, but I did not like it. The camera moved when the shirt moved. I like it better when the camera moves only when my body moves. I cut part of an old credit card into the shape of a diamond and taped the camera securely to it. I cut a square hole in the center of the card so the camera vents are free to breathe. I fold two short pieces of paper tape over so that it is sticky on both sides, and I stick it to the top and bottom of the back (skin side) of the card. If I think my target will be short, I put extra thickness of tape on the top to lower the camera frame, and vice versa if I expect a tall target. I prepare my rig while standing in front of a mirror at arm's length, which simulates the distance between my target and me..