A wonderful contribution from ChallahCrumbs:


Materials Needed:

• 4 q-tips 
• White paper 
• Paint: some variation of brown, green, orange, yellow and red 
• Pencil 

Directions:
Using brown paint, paint a tree trunk and a few branches.
Use the pencil to draw a circle where you want your tree to reach.
Dip the top of a Q-tip into paint and dab it on your tree. Repeat with all the colors you wish to use.