Step 1: What You Need
1 solar motor with wire and panel. I got it several years ago, il don't know if this models still exists. You can do it with battery motor as well.
white connectors (the ones that look like snow flakes)
3 or more water paint tubes
3 or more milk bottle lids
3 or more tea spoons
1 wood stick or 1 fine paint brush
squares (21 cm by 21 cm)
Step 2: Make 3 Big Stars
Step 3: Feet Under the Motor
Step 4: First Star Upon the Motor
Step 5: Second Star Upon the Motor
Step 6: Have Fun
When it turn drop paint with the tea spoon.
Gently mix with the wood stick : you are an artist.