The newest chemistry related pattern by ChemKnits! This cozy has the caffeine molecule on the front, and a ribbed back so it can stretch to fit a variety of coffee cup sizes.

It requires less than 1 ball of yarn, and and scraps for the colors of the caffeine molecule.

Alternatively to knitting in the molecule as you go, you can add it with duplicate stitches. I tend to use multiple strands of yarn when I’m creating these molecules to avoid large floats.