Ryobi Corner Cat Paint Shaker_v2

3/11/2019 UPDATE: Ultimately I wound up putting a small circle of leather in the bottom "cup" of the holder. That seems to both tighten up the grip, and provide a bit of a cushion. I've been using the CatShaker for a lot of painting recently and it's working really well.

2/23/2019 UPDATE: I've discovered that the action is so vigorous that the top of the paint bottles actually start to eat up the "forks" at the top of the holder. I'm experimenting with gluing small strips of leather in