Supplies:

Worsted weight yarn – I used Big Twist Value in white
Small amounts of yarn (the same weight you used for the tooth) in contrasting colors. You will need at least one tail color and a color for the spikes at a minimum.
3.75 mm crochet hook
Scissors
Needle for sewing down yarn tails
Embroidery floss
Needle for embroidery details
9 mm safety eyes or 12 mm animal eyes (I used 12 mm animal eyes)
Straight pins (optional for sewing)
Poly-fil or stuffing of choice
Small piece of felt (optional for a tooth fairy pocket)
Small piece of ribbon for hanging (optional)