My DD wanted to help make her small cake for just the family this year so I let her have it. She added green, purple, and blue sprinkles after all the pics were taken, but all the decorating was done by her. I think she had more fun making it "grubby" than when whe got to eat it! lol We used the new Betty Crocker neon gels to make the color. The cake was purple on the inside.