Found some more cute shirts, esp to workout in! (Calling all Dland marathon runners!) This lady has some other cute shirts on her Etsy shop; I fell in love with her mini bio - Disnerd, daughter has autism, runner & creative/cute shirts! (Now wondering if she's on MW!)
Check out her shop:
http://www.etsy.com/shop/RunWithPerseverance?ref=seller_info