Step 2: Measure Two Times, Cut Seven
The teeth are 1 inch segments of the 1/8 inch dowel. You will need 5 teeth.
The mouth(?) is a 2 1/2 in. segment of the 1/2 in. dowel.
The handle is a 7 in. segment of the 1/4 in. dowel.
. . . . Cut those pieces
NOTE: I HIGHLY recommend wearing protective glasses while cutting because. . .well, personally I like being able to see.