Below are some links to Amazon.com where you can buy the materials needed for airlayering. You may want to obtain smaller amounts of these items locally with the possible exception of the parafilm which may be hard to find.
Parafilm M Roll, 125′ Length x 4″ Width
100 Poly Bag Zipper Resealable Plastic Shipping Bags 6″ x 9″
Alliance Pale Crepe Gold Size #64 (3 1/2 x 1/4 Inches) Premium Rubber Band , 1 Pound Box
Miracle-Gro Sphagnum Peat Moss, 8-Quart
Dip N Grow 2oz
If you have any questions leave a comment below.