We recently did a project for Kappa Delta Sorority that is really unique and pretty different from what we do on a day-to-day basis.
First a continuous design was created (actually, we made four different designs!). Then we had it printed on fabric, which was cut into a pocket and sewn onto the tees. The effect is very neat and totally original. You get a t-shirt that has a detail (the pocket) which really speaks to your individual organization.