It is often the simplest designs that stand out from the crowd, and this one from Ugmonk certainly does:

Link is here

Did you know that the whole concept of Ninja Zoo is that you can sell t-shirts from your MySpace / Facebook / Blog page by installing a widget?  Why set up a t-shirt shop elsewhere if you already have an established webpage?  The widget can be customized to match the look of your webpage and it is quick and easy to install.   Try it out and see for yourself!

Ninja t-shirts rock!  Our trademark NinjaZoo t-shirt has been voted one of the top 15 ninja tees out there  Go and see it for yourself over on Color Overload where they have pitted the best ninja t-shirts against the best pirate t-shirts.  You know where we stand!