okay, i tested the pandora-solution for my problem. extruding edges is quiet simple, but i don't have a glue how to texture these planes.. i've got a nice chicken feather picture, but how do i add the alpha channel to the black background? i didn't found a way with microsoft photodraw 2000.... umm.. i think i got to find photoshop somewhere :-)
but.. how to texture just one face? if i select the face and texture it, the poly-sphere is also textured.

thanks for your help so far, you guys are cool :-))