I’m not usually a fan of the whole “Keep Calm and…” thing, but this design has won me over. It, of course, references the treat ‘yo self episode from Parks and Recreation. I love that they added Aziz’s face in the background–it makes it so much better than just the plain text.
You can buy the shirt for ~$24.00 at Redbubble. You can also customize the design if you so desire. The only thing I don’t like about Redbubble is the product previews–but I think you get a good idea of what the shirt will look like.