The following supplies will be needed to crochet a green alligator.
Embroidery thread in green, white, and black You will need 3 skeins of green, and 1 of black and 1 of white. Recommended Brands would be Iris, or DMC. But you can choose your favorite.
Crochet hook 1.65 MM
Yarn needle
Scissors

The following stitches are used in making this alligator
Chain - ch
Slip Stitch - sl st
Single Crochet - sc
Half Double Crochet - hdc
Double Crochet - dc
Double Crochet Decrease - dcd

The Finished product is:
Width: 6 3/4 inches
Height: 2 3/4 inches

And also know how to hand sew.