An unnerving effect can be achieved simply by combining two disparate faces, split neatly down the middle. Here are two alarming examples, the first from a book by excellent Canadian writer and blogger Brian Busby...
..and the second from a huge and entertaining Taschen book on films (though it weirdly includes Face/Off as one of the 100 greatest movies).
Speaking of Taschen, here's a weird recent release of theirs: Norman Mailer's MoonFire, in the hideously expensive "lunar rock" edition. You get a sort of box/table thing with legs like a Lunar lander and a lid like a topographic Moon map, plus a bit of the Moon. Yours for only 60,000+ euros. I sort of admire the massive scale of the thing, while also shuddering at its general vibe of vulgar hideousness.
This folly reminds me inevitably of one of the other daftest manufactured book 'collectibles': The Stephen King short story My Pretty Pony, printed as a book with metal covers and a cheaparse digital clock glued to the front. Yours for $5000.
And getting back to Taschen madness, how about their £9000 edition of GOAT (Greatest Of All Time), a big book about Muhammed Ali that comes, naturally enough, with a box, a stool with a tire rammed over it, and an inflatable dolphin.