Whenever I bring my TV-B-Gone out to restaurants, I always look real suspicious holding it up and pointing it around, so I’ve been looking for a more subtle and dinner-appropriate solution. I got zippered hoodie sweatshirt from the thrift store which had a convenient logo on the upper left front, complete with rhinestones! I thought the IR LEDs would blend in quite nicely, so I stitched it into the sweatshirt. The batteries are in the pocket. I broke out the pushbutton leads and used conductive thread to sew paths to the edge of the zipper, which has a metal pull. I made two little pads with the thread that are bridged by the zipper pull when it passes by, so all I have to do is zip the sweatshirt up or down to activate the TV turning-off action. Works great! I made an instructable for this project so you can see how to make your own. You can also view the full set on Flickr.
You can buy my LED sewing kit (whose parts can be used to make one).