Better yet, get some gear with YOUR yorkie on it. :-) We have our own little business, and got some shirts and other items printed up a while back with our logo on them. We used
CafePress: Custom t-shirts plus unique & personalized gifts, and seriously couldn't be happier (their prices are even totally reasonable). They do a great job printing anything you want, even photographs, on light (grey, white, tan) colored items, but we didn't have much luck with darker (black) items. Either way though, you get a total money-back guarantee on anything you buy if you're not 100% satisfied with it. We tried getting our money back once when a dark colored tshirt didn't turn out right... no problems, they refunded us right away, no worries.
Lauren & Nikko