Hey... me again...
I have .png files with several designs, one has Joe's boat on it :-)
I just ordered two gray tank tops for him, and it actually is cheaper to buy two (they have a 30% off sale ends today at 4 p.m. CST, use code FLSH30). One tank came to $25.38, two tanks cost $22.69. Strange!
I wasn't able to set up a "store" so that I could put the files there, so guess you'll have to grab them from here instead. FYI: if you choose a light colored shirt, the "white text", etc. in the design will be knocked out and you will instead see the color of the shirt. If you're ordering a dark colored shirt, they will print the white text/design. Seems like a weird way to do it if you ask me. So anyway, there is a couple of different versions depending on which color you're putting it on.