I went to the craft shop and picked up a package of split rings for $3, which gives enough rings to make several chains. Then a trip to the fabric shop for two buttons for $1.50. It took me about an hour to put together. Here's the finished product:



Of course, you could use about any button you wanted. I did try it on the jacket and it works pretty well. The only thing is I would like to put some kind of clasp on the opposite side of the fabric from the button to secure it in the hole a little better.