FG T-Shirt Question

I've been noticing a good amount of FG shirts on eBay and I'm wondering - was there any official shirts made, or are these most likely unofficial shirts that people are trying to pass off as official. Many thanks, if they are unofficial then hell I might as well find the images they used and make my own shirt. :-)

There were a FEW officials made. A LOT of what's on ebay is custom.

I found this one: http://www.cafeshops.com/stooge.5398575