A mixer/agitator for airbrush paint bottle.
The original designer WaveSupportApparatus used a 140mm fan. This is a 120mm fan.
Plus I made the top modular so it can change to different size bottle.

There's 2 version for the base. One with a 21x15mm rocker holder and the other is a 15x10mm rocker.
Everything is powered by a 12v power adaptor(i used an old HDD power adaptor).
There is also a holder for a potentiometer if you want to control the vibration effects.

Thing required:

12mm PC fan
4x compression spring - 9mm*35mm
21x15mm or 15x10mm rocker switch
Solderless 2.1mm Female Terminal Block DC Power
4x 50mm m3 screws and nuts

Tip: Because of the heavy vibration, you will need to weight the base down or it will start trashing all around the table.
Find a heavy plate that you can screw onto the base.
Or maybe put a few heavy bags of screws or nuts on the base to weight it down.