About the handwarmer idea...I know somebody that tried out their own little contraption last year involving handwarmers. I don't know if he had much success with it though. He basically made a scent bomb with it....I think he used a spray paint can top. Put the handwarmer in the bottom and used a perferated partition to place on top of the handwamer and placed scented cotton balls on top of the partition and hung it on a tree. I've actually been meaning to talk to him about it and/or try it out for myself this year. It seems like a good idea to me.