As said previously the face paints are water based so really it's just like going back to your childhood with the painting kits. All you need is lots of water for dipping sponges and brushes into. The majority of face paints will get thinner the more water you mix with them to enable you to change the shading/intensity of the colour. Obviously the brushes need to be cleaned between each colour to prevent mixing, hence the need for lots of water usually a small pot or pots regularly changed. Some people tend to have different brushes for dark or light coloured face paints, but this can prevent you from using your "favourite" brush for one particular colour, it's all a matter of personal preference.

Face Paints
Brushes & Sponges
Removing the Paints