Image: REAL-f
This Halloween, go as yourself while wearing this super realistic 3D "face mask" by a Japanese company called REAL-f.
The mask is so uncanny (the company claims to be able to accurately reproduce the details like the iris, blood vessels, and skin pigmentations), that I predict there's going to be a Hollywood movie starring John Travolta and Nicholas Cage masquerading as each other. Oh, wait.
Link (in Japanese) - via TechCrunch
We wear the mask that grins and lies,
It hides our cheeks and shades our eyes,--
This debt we pay to human guile;
With torn and bleeding hearts we smile,
And mouth with myriad subtleties.
[...]
~ We Wear The Mask by Paul Laurence Dunbar
Regarding "mouth with myriad subtleties" check out FACS (Facial Action Coding System) and Tendai Johnson's art exhibit "Contingent Identities".