You can report it as marketing, but you can only deduct what it cost you, not the retail value of your finished product.
If it cost $10.00 in materials to make a product that sells for $200.00, that marketing product's deductible value is $10.00 for you.
If you personally supply the labor, you cannot add the labor in.
If you had employees work on it, you can add in their labor cost to it.