When in doubt, ask mom - necklace

When in doubt, ask mom - design on a colourful marbled background. (The silver shown in the bottom right is a digital mock-up.)

Necklace is made of glass and a metal alloy that is nickel and lead free, and comes with an 18" chain made of the same material, with a lobster clasp. 

the image is 1" in diameter, making it approximately the size of a quarter.