Like most kids, my daughters have favorite colors that they like to cover everything from their clothes to their notebooks to their bicycles. My oldest daughter's favorite is Vanadyl (Vo2+ aq) while my youngest squeals at anything with the color Sugilite (KNa2(Fe,Mn, Al)2, Li3Si12O30)
Did I lose you there? Maybe you need this new set of crayons from Que Interesante that teaches kids the chemicals used to create certain colors. From their website:
"[W]hile children are coloring, they are also exposed to the names of chemicals that will make those colors! So instead of thinking "I want green" they will think "I want Barium Nitrate Ba(NO3)2 Flame" and then when they take chemistry in high school and their teacher sets some gas on fire and it makes a green color and they ask the class what chemical it was your student will know it was Barium! Genius!"