T-Shirts for Dog Owners Check out these dog-themed t-shirts for dog loving humans.  Make someone smile with a cute, geeky, fashionable t-shirt showcasing their love of dogs. Whether you're out walking your pup, competing in Agility or Hoopers, or just lounging around at home, these t-shirts are the perfect way to stay cool and show off your love for dogs. And if you're looking for a gift for that dog-obsessed friend in your life (we all have one!), these t-shirts are sure to be a hit.