How do I create elastic/bouncy walls

So I have a ball and when it hits the sides it bounces off which is fine but is it possible to make the wall have a bounce effect? So imagine the walls are made up off elastic bands I would like a bounce effect. Here is a quick mock up design

Add Physics behavior to the walls and ball then set elasticity higher for more bounciness...as for the elastic effect, it will either have to be an animation...or something rope-style made up of sprites (with physics) connected by revolute joints, in order to make it look like the walls are bouncing. There may be another way though.

try that r0j0hound capx

A newer variation.

Or maybe something like this old capx:

— lovjc7 R0J0hound Thank you