Reply To: Advice for disabled gamer

[seldon9 12954xp 0]

There are some paint shakers out there that may be of use to you. Mig has this one available:
https://www.migjimenez.com/en/accessories/2178-paint-shaker-7426842918182.html

It looks to me like it’s just a rebranded version of a lacquer shaker:

If they look a bit fiddly, having to strap on a bottle, Artis Opus has a shaker that you only need to hold a bottle against:
https://store.artis-opus.com/products/paint-shaker-artis-opus-companion-series

You pay for it though. It appears to be a variation on test tube shakers.

They’re still expensive but you might be able to find some ebay bargains if you can cast your net a bit wider.