I like funny shirts.
I have an aesthetic to my funny (tee) shirts and it is simply this:
There is limited space on a tee shirt to use before clutter, entropy if you prefer, occurs.
As such, line drawings are better than photo realistic pictures and silhouettes are better than line drawings.
A picture is worth a thousand words, but words still tell the joke.
The picture presents the conflict.
So I am waiting for a new shirt, most likely in red, white, blue. It will have, from left to right, a graphic of track pants, a inequation sign, and a graphic of a holster. I don't know what text if any is necessary to clarify.
Maybe both of these graphic will be shown in relation to a man with a gun, but I think the essence of the joke lies in track pants, gun holster non-identity.