Browsing on Etsy I found these labels that can be placed on your set of crayons and colored pencils. This is perfect for your super nerdy scientist friends (Big Bang Theory) or helping your kids learn the periodic table of elements. Very useful. They are available through QueInteresante. Their motto is “where geek meets art”. Perfect! A set of crayon labels will run you $15 and colored pencil labels will run you $6.25.