Thanks for hosting Mitch and I so had to laugh at my fried eggs, sunny side up.
Here are some silhouettes taken from my garden at sunset.
Here are some shadows reflecting on the body of my neighbour's sphinx cat.
Some shadows on the wall caused by the sun shining through the blinds.
I don't know if this one qualifies, but the light effect of Mr. Swiss early in the morning on the computer seemed to be asking for a photo.