Custom fees, import duties, taxes for United States

I was just about to purchase my first set of tentacles when I noticed this on the Buy Now page:

Please Note: There may be customs fees, import duties or taxes imposed by a destination country outside the European Union which you may have to pay in addition to the shipping costs. The charges must be paid by the recipient/importer of the parcel. Unfortunately cannot tell you how much the charges would be, as customs policies and import duties vary widely from country to country.

I work at a production company in Los Angeles, CA (zip code: 91521-4646) and we have a feature film production coming up November 6th, 2015. How much will the “custom fees, import duties and/or taxes” be for us in Los Angeles for two tentacles and would they arrive before November 6th?

I looked everywhere on the internet to find custom fees and import duties from Germany to the United States but no luck. Thank you and I look forward to your reply!

-MDR