About T-Shirt Design
Best Grandma Ever T-Shirt is one of those designs where the saying does most of the work, and that is totally fine. Fans of family humor will probably get the joke first, but it is simple enough for almost anyone to understand.
It makes sense for birthday or Mother's Day, especially if the person already likes this kind of humor. The graphic tee style keeps the whole thing casual and easy to understand. It has the same easy attitude people usually want from sarcasm shirts without sounding forced. It has enough personality to be funny without looking like it is begging for attention.