I recently received a newsletter in the mail from one of the quilt stores here in town. They had this little tidbit in there and I love the idea so much - I wanted to share with all of you!
Keep a container (Mason Jar works well) next to your sewing machine/work space. Toss thread scraps and bits of batting in there. Then add them to your bird suet-feeder.
The birds will use your scraps of thread and batting to build their nests. Hows that for RECYCLING!!!