wonderful for rolling bits of lace and trim etc around. Wish I had a few dozen. I do dolls for kids with cancer and have all this trim to organize, and it is hard the right trims some times in all the bags I've put it in.
If you decide you don't want them, please send them my way. giggle
seriously, just roll bias or whatever around the spools and secure with a short straight pin
Some people decorate or paint them and make 'spool doll' arms and legs using the different sizes.
good luck.