Can I make a suggestion P&C? I know you've already got these guys lined up, and the price looks good, but we've already got a very wide range of ideas on designs and styles people want. Would it not be easier to set up a store on
www.cafepress.com.au? The shirts might be a bit more expensive, but it has a number of benefits - you can do a range of shirt styles, coffee cups, baseball caps, different designs etc, they handle all the transactions, returns, customer service, shipping, you don't get slugged with excess shirts if anyone bails on you, no dramas over wrong sizes etc. There's no cost to set up a store - you just give them the designs, give us the link and commerce ensues - no minimum runs, no group buys etc. There's also a premium store option, which costs money but (depending on the advantages over the free option, which I haven't delved into) it might be worthwhile, particularly if it would make some money for AHB.