Some fun online painting games are "Color, Draw and Paint," "Unicorn Herd" and "Ellie Mask Designer." These games are free to play and appropriate for all ages.
"Color, Draw and Paint" is a fun and easy painting game by ABCya. It includes drawing activities, different painting tools and coloring pages for kids to decorate.
In "Unicorn Herd," the player is adding paint to different parts of the unicorns. They can paint the body, unicorn hair and horn.
"Ellie Mask Designer" is a fun game where the player needs to decorate a mask for a masquerade ball. There are many different colors and designs to choose from.