Originally Posted by An Army Of Juan
Is this even a possibility? Am I just talking out of my ass here?
Why wouldn't it be possible? Other players endorse them. But you still need to be the kind of player that might increase their sales by endorsing them. Meaning, you need to have huge numbers of fans and public exposure already or else be a total badass virtuoso on your instrument so that other players will read about you in magazines.
As for your second question... Well, that depends on you fit the description in my answer to your first.