Do you know Panic which company is famous by Transmit and Coda which are elegant Mac application. One of Panic product's strong point is a design. Actuarry Coda's tab design was introduced into Mac OS X as default. The company is also producing T-shirts design. I have purchased three T-shirts recently. It seems good quality and reasonable price. You can order from Japanese site as well. Please take a look if you have an interest.