Catcheen
I think the challenge of this will be to find the bells. My suggestion is if you can find the bells, just crochet a band that'll go around your ankle and attach the bells with jump rings to some of the loops.
You can also pre-thread the bells onto a thin thread or piece of yarn and just carry that thread with the yarn you're using and deposit a bell wherever you want.
Hmmm.. I hadn't checked lately, but Hobby Lobby used to carry the bells. The thread the anklets are made from is thin enough to pre-thread the bells and just allow them to drop... I hadn't thought about that and had always wondered how they managed to get the bells on. Thanks, Catcheen!
Now, all I need is to figure out if the bells are still for sale, and find a pattern...