I can't let this one ride. I know that you are young and you are eager, but don't start off your reputation with a lie.
Everyone with experience knows that if you are FedEx certifies that you would have had to send in a box to FedEx, properly prepared to ship a snake for them to inspect before you became certified.
If you were legitimately certified, you wouldn't have to ask how to properly pack.
Definitely use ship your reptiles and don't take shortcuts to save money.
Sent from my ADR6400L using Tapatalk 2