This is an intermediate pattern worked in heavy weight, feltable wool yarn on size 10 ½ needles with 75 yards of heavy weight white wool yarn(w) and 10 yards heavy weight black(bk) wool yarn. This pattern also uses black and white sport weight wool yarn is worked in stockinette, short rows, I-cord, and intasia. You will use a #16 embroidery needles to sew the pieces together (I find it easier to have 2 for sewing the teeth).  There are accessory embroidery patterns available to add decorations.