Lars has put together a rather disturbingly large list of objects that are either useless or dyfunctional. Most of them have pretty YouTube Videos. Maybe one of them makes for a great gift.
Description: Music player that moves itself to music / sounds.
Price: 300€ aka $375 Sony Rolly at amazon.jp.co; definitely useless. I like the video and the comment "if u played dubstep it will start killing people."
Price: still in concept stage. So definitly dysfunctional. And when it goes into production ... it'll be quite useless.
Optimus Maximus keyboard
Description: Keyboard with small full color displays as keys.
Price: 1517€ aka $2069 Optimus Maximus keyboard. I heard that it is too big for a keyboard (basically you have to learn typing again). So really dysfunctional.
Description: Faucet that, based on face recognition, adjusts the "washing experience" to the user's favorite. And you can touch it and something happens (as seen in the video ... I'm not able to speak this language).
Price: Unknown. And of course, quite useless.
Authors have copyrights. People say these things in footers.