How do you get sponsored by DGK?

You just send a video to the company you want to be sponsored by, showing them why they should, and then you wait for the reply.

Or

Get your name out there, make tapes. Befriend skateshop owners (but don't kiss their butts, they'd notice), skate at skate parks, enter in competitions. Travel and skate the spots you see in videos. Oh yeah, and be really good at Skateboarding.