Now you just need those face-morphing pills that Tom Cruise takes in Minority Report to avoid being caught on video tape sneaking around your local public library with some sort of transmogrifier-looking device.
Okay, not quite as good, but good enough to disguise yourself and not arouse suspicion if you keep your interaction with others to a minimum. (Here's an example from Penn and Teller's TV show. The effect is likely diminished if you are expecting it though: https://youtu.be/7P3B6R6Eqwc?t=1797)
Masks like these are commercially available from mask-makers like this: http://www.spfxmasks.com/ourmasks.php