Sorry for the horrible tutorial without pictures or anything :/
I was given a bottle cap with a hole drilled into the top already, so I just put a jump ring in the hole and put the open part up and away from the cap.
I put a layer of glue down first.
I then started placing gears and a layer of glue, then more gears and glue. This went on until I was happy with how it looked. I then moved the pendant to where it wouldn't get bumped by myself or the drs or anyone in the hospital. I let it dry for over 24 hours, but if you use anything like the resin that you should use, follow that ones time frame.