Jimmie here are some explainations...and pics
Just find a copper or iron wire which is nearly the same diameter of the plastic bead hole...put some superglue...when it's dry cut the wire on each side with pliers.
You can also stick plastic beads on an articulated head (see pics) the way the streamer swims is different when you pull and stop...and it's a bit heavier
hope it can help...pics are from an article I wrote in january 1991
it makes me feel my age
I'm going to repost this in the little trick to share thread...