Are you looking for a better way to mix your miniature paints? Do you hate Vallejo or Scale 75 paint separation in your bottles? A lot of miniature paints tend to separate from their liquid binders if allowed to settle, and require a bit of shaking to get them to mix properly again.
Proper paint viscosity is so important for enjoyable painting!
There are a lot of Do-It-Yourself (DIY) ways of mixing model paint, including clamping acrylic bottles to power tools, e.g., a jig-saw. The fact DIY options exist just shows how regularly (and badly) hobby acrylic paint separates in their bottles.
There is a need for miniature paint mixing products!
Shaking multiple paints on a daily basis has actually caused a few wrist and joint issues for me. Automated shaking/mixing systems have always been a product I keep an eye out for making my life painting miniatures more comfortable and convenient.