I just ordered this T-Shirt in a Fatique Green colour. +Zazzle has some other interesting shaving designs, but if you don’t find what you’re looking for they also have great customization options where you can add your own text and image.
My wife chose her own text and included a vertical text message for the back of her T-Shirt.
See https://www.zazzle.com/avoid_cartridge_razor_dark_tee-235663912013455221 
Avoid Cartridge Razor – Dark Tee
Show your support for traditional wet shaving with this fun t-shirt! Be featured on the Shaveology Blog! Email a pic of yourself wearing your new Shaveology tee to shaveologist@gmail.