Gawd, I can't believe I'm as old as I am. Those little bells were everywhere 40-50 years ago. We called them jingle bells. The holes were for sewing them on thing. Very popular at Christmas. Sew 8-10 on a strip of leather or cloth and you had Christmas jingle bells. Or slip a shoestring through two of the holes and you had bells for your shoes. They weren't very sturdy, and a lot of times the little ball bearing inside would slip out and the jingle would be gone. I thought they were still in use.
Noodle