Paint

White
Black
Yellow (lemon)
Red (magenta/bright)
Blue (cobalt, or cyan)

Add and other colors/shades to have more options and versatility in color mixing. 

Medium body student grade acrylics. I DO NOT recommend craft paint.

Brushes

Large Square 1"
Medium Square 1/2"
Small Round
 
Optional extra brushes, pallet knife, sponges, circle shaped objects for moons and suns. 

Canvas

Wrapped Canvas 
 16 x 20
Panel Canvas
12 x 16

Other sizes or materials, be aware that other than canvas might not look the same, but anything goes!