Math doesn't have to be boring.  These chalkboard earrings feature some basic addition.  These are part of my back to school collection.
 
These earrings are approximately 0.9" wide by 1.57" tall, plus the stainless steel findings.
 
All earrings are laser carved baltic birch and hand painted.  Due to the nature of hand painted items, no two items are ever 100% alike.  There will be some variation in color.