download iExpressions at
https://aescripts.com/iexpressions/

After Effects comes with a built-in shape layer repeater but what I show you here is something very different. In contrast to the built-in shape repeater, since iExpression creates a new shape by concatenating many copies of the original shape to a single new shape. You can also scale down or bend the copies successively. And by keyframing the shape path you can create some pretty crazy path aniations in not time.