ALL ARE FOR SALE HERE :: http://www.furaffinity.net/view/14617049/
(You may also bid here on weasyl if you don't like FA!)

Teardusts are little invisible creatures that appear only to somebody they have bonded with. They make small chiming sounds, like that of a small windchime or a flute, and are known to change the intensity of their colors based on their owner's mood. They also can change size, although many prefer to be about the size of a small rat, there's no limit on how small or large these little cuties can get! Teardusts are known to help improve their owner's mood and inspire them as well, and all of them are friendly spirits with good intentions. (HOWEVER: You may use these designs and change the species/animal/whatever if you wish.)