When kitten are so tiny, often the balls are too big or not easy enough to get. This one has the right size to be caught and retrieved. With the long lead, you can make your kitten run and jumped to get it and having your hands save at the other end of the lead.

You can attach a bell to make it more attractive.

You will need just a tiny bit of leftover in a thick DK or worsted yarn.
A bell would be great.
You can also attach one end of the lead to a catfish game angel to replace a broken pendant.