How do I send an online purchase to a different house?

I'm buying a set of fangs from vampfangs.com for a photoshoot/future halloween costumes, and though my mother does not mind the purchase, she does not want me ordering things online. So a friend agreed to let me use his address for the package. I don't want any trace of this purchase being made online, so how do I make the purchase with my debit card and send everything to his house under his name?