Keychain Ducted Fan Quadcopter

I wanted to develop something bigger than the little ornament quadcopter keychain. I worked on one that would have a swivel so it would be more useful with a larger number of keys.  You will have to go to your local hardware store or Loews to pick up the rings, but I don't know anywhere you are going to find a keychain like this one. In order to get the swivel to turn, there are two small pegs you will need to cut free.  They are pretty obvious and can be cut with any small knife like an X-acto.  The key rings do not come with the product.  You can find these  at a local hardware store or Lowes.