In 2009 and before there was an individual that sold Foam Pads to fit all of the side pockets, cup holders and trays for the Prius Gen II and III. Is he still around? I can't seem to find him here or on ebay. Thanks.
He's still around, here's his e-bay store link eBay My World - padsplus He hasn't had any Prius pads listed, so I emailed him and he send me a message asking what year my car was, but then never responded. Good luck. Tim
Another option for you would be to by some sheets of foam at a store like Hobby Lobby. They come in a multitude of colors and thicknesses for a few dollars a sheet or less.
Agreed. I am getting tired of my coffee cup rattling in the cup holder so I stuffed a microfiber towel in the hole so it insulates the cup from the hard plastic. This is a temp fix until I stop my the arts & crafts store down the street to purchase a sheet of black foam. I wonder if you could use PlastiDip????