Fun Make up Brushes for Face Painting. If you always need an extra brush for your son then this fun brush set for boys is the one for you. This product contains 3 brushes: one fine, one round and one flat. Having 3 different types of brush in your kit is important because it means that you can make many different lines and shapes than you could with just one brush. If you buy this kit, you do not have to worry about buying expensive professional brushes as these brushes are effective and cheap.