Vistaprint offers a Custom-Printed T-Shirt
for shipping. Even better, you'll receive a free $5 Bucks Back Reward
good for a future Vistaprint purchase. (A unique link for a $5 in-cart discount will be emailed to you shortly after placing your order.) That ties last week's mention as the best customized T-shirt deal we've seen. Only front printing is included in the price; additional customization is available for an extra cost. It's available in sizes from S to XL.
Of note, XXL costs an additional $1.99.