Skulls Wallpaper - Bronze on Oil Slick
If you don't mind spending a lot of money or doing a lot of prep work, then Rockett St. George has a wallpaper you might be interested in.
I would have told you about this gem last night, but we lost our internet connection for the evening (and cable...and phone. The horror!).
"The signature paper featuring skulls in a reflective bronze, deep pile velvet on a incredible light-catching, iridescent base, using horribly expensive ink which changes colour as you walk past it - through reds, greens, blacks and golds - like an oil slick."
(spotted on streetanatomy.com)