Make your own...

 Make you own transparent bear-in-cave window art.
This bear silhouette comes in four sizes - Go here, transfer the bear
to black paper (do it like this), cut it out and decorate the back side 
with putwaxy kite paper or colour tissue and hang it in 
your window as a autumn or winter decor

Go to the blog 'Passengers on a  little Spaceship' and see a 
wonderful step-by-step transparency silhouette tutorial

Artist unknown to me