If you're decent and have awesome connections you can get sponsored.
Otherwise you need to be or have one or many of the following:
One of the top skiers in your area
New and innovative style and tricks
a sweet camera crew
A person who will represent a company well
king skiing preppy again since 1999.
-check it out-
Just sign up for a credit card and if you don't wanna deal with it, destroy it when you get it. You won't have to spend a penny.