Just got my A1 Mini last week, learned Fusion and here's the outcome. It's not the most practical but it's fun to use I guess so.. print with caution.

I made a paint brush cleaner that allows you clean your brush after every use so that you no longer ruin your paint with dirty water!

You will need 4 pieces of 10mm x 3mm magnets and the rest are all 3D printed.

3 steps to use it: 

1. Pump water from the tank onto the cleaning plate
2. Wash your brush with the ridges
3. Pour the dirty water away

Feel free to scale it up as I made it smaller for prototyping.