Step 7: Building the hanger
Now stretch the hanger out into a straight line. On on end of the hanger, make a little hook. Now wrap the one end of the hanger (the side with the hook) around the mid-section of the bottle. As the end with the mini hook meets up with the rest of the hanger, clip the hook around it, securing it to the bottle. The third picture will help you visualize this.
Now, on the other end of the hook, make a more rounded hook, big enough to that it can hook on to wherever you want to hand the feeder up.