Going through my old thread collection- I decided they would make the perfect ornaments! I just threaded this one with some left over yarn and added some buttons and a hook- it took all of 5 mins!
I also made this little garland to string around the tree. I added buttons, varied the size of the spools of thread and included a buckle and other discarded items! Then I attached hooks to the green yarn and hung it on the stronger branches- due to the weight of some of the spools.