Basically anything from ice cream green - Tiffany blue and anything in between but Aqua/turquoise is a safe bet for a color. Any shade bright or light.there will be something similar and blend able for either gender.
Popped Bubble Art: Simply color bubble mix with food coloring and blow bubbles onto paper. As the bubbles land and pop, they create beautiful works of art. A great kids activity for those lazy summer afternoons
Use school glue gel, salt, & liquid watercolor on watercolor paper. The glue makes the colors rise from the paper and the salt creates a 'starburst' look. Rubbing alcohol on wet water color is cool too.