While reading Oscar Wilde's, The Picture of Dorian Gray, I came across this:
There was a silence. The evening darkened in the room. Noiselessly and with silver feet the shadows crept in from the garden. The colours faded wearily out of things.
I tried searching for what it meant to move with silver feet but found only discussions of Bush having a silver foot in his mouth. On this site I found mentions of clay feet, but nothing of silver feet.