On my way home on this icy December evening, I noticed that the rapidly moving clouds occasionally parted just enough to reveal the almost-full Moon.

Five minutes later, I was back outside--with a tripod--freezing my fingers, despite the fact that these conditions make night shooting notoriously challenging. At the same time, cloud mutations can create different and, at times, phantasmagorical effects.  

...causing "shadows" on the surface (via bulb exposure):

moon dec 15 c 800 px url.jpg

...resembling an eclipse:

moon dec 15 h 850 px url.jpg

...or simply appearing like the classic Moon, all within minutes: