My brother in law owns a screen printing business so i could possibly get a good price on hoodies, hats etc.. Has an in house graphic designer too if needed.
He does a lot of promo gear for some big businesses and events ie. Vodafone, Lion Breweries, Big Day Out ( when they were still around ), Rhythm and Vines etc
It's an option anyway if you guys get stuck or cant find anyone to do the work. Im happy to have a word to him next time I'm around my sisters place.