I think Samsung had a pink phone a few years back that had a semi-reflective screen that you could use as a vanity mirror by turning off the display, as a function.
No kidding! It also had what they called a "Pink Cycle" calendar. ***cringes*** (Nothing to do with bicycles)
I don't think anyone has continued with the idea though...
Problems worthy of attack, prove their worth, by hitting back. -Piet Hein.