I know 5150 is a snowboard company, but they only make boards/bindings/boots, no apparel. I've only been snowboarding twice in my life, and when I first saw a 5150 board, I got pretty excited, haha. Even though our little fake team isn't related at all.
There is one guy in a nearby town who ran a little skate team/shop of his own that has his own printing press that I could ask to make those kinds of shirts. He is a pretty stubborn guy though, takes people's ideas with a grain of salt if it doesn't benefit him, in any way. So even if I asked if he could do it, he would just shoot it down, probably because I would be the only one buying them.