So I imagine some of you already know about this but I randomly stumbled upon Theodore Gray's 'Wooden Periodic Table' today (
http://www.theodoregray.com/PeriodicTable/index.html ) which led me to his visual table of elements. Most entries have numerous photographs of various specimens of the given element, I've lost about 3 hours to it today so far and have only looked at a handful of them!
Really neat.