Zazzle is holding a 30% off one day sale on everything with checkout code ALWAYSZAZZLE. That includes my Miskatonic University gear. One thing I wasn't aware of until recently is that you can modify the garment style by clicking the "Customize It" button and then selecting the new item from the list in the bottom right hand column. That's how you can turn the default dark T-shirt into a hoody, or apply the expedition logo to the front or back of a garment.
Sadly, you can't prevent the hipster model from wearing plaid golf pants.