I was playing around in the yard taking pictures.
I had a broken pitchfork / gardening fork end with no handle.
I made one with shadows. (Look closely, the handle is only a shadow.)
Then I went black and white, accentuating the fork with color.
Turn up the contrast for effect.
Last, added color to my silhouette (which is a shadow), making me green.
My favorite is the penultimate one.
Natural color shot standing on my picnic table (my neighbors don't laugh..., I think):
Added a layer in Elements, brought back color in pitchfork, (sans handle of course).
My favorite: I turned up the saturation in Picasa2.
Just playing further, since my shadow is only a shadow on green grass, I added color to me:
What skinny legs. Ha. (It's the angle.)