we sell petflys in our store, they are super cute in person and very stylish and come in 3 different sizes. They're very sturdy and come in really cool stylish designs or really simple ones. We carry all the styles, some not yet posted so let us know if you don't see what you are looking for...
http://www.sassypup.net/catalog.php?category=70
They cool boys designs like the cross bones, or the simple brown paw print one and girly ones like the paw princess etc.