Bought the kit for the TV-B-Gone and I love it, but it's ugly to carry in the kit form. Found this flash memory case at radio shack for $2.99, figured I'd give it a try, hopefully to the average person it looks like a led flashlight. Works great walking around in the mall. Battery life is pretty good with 3 AAA's.
So, I couldn't rest having just one so I bought a bunch of parts and decided to try to make some smaller. Here is my first key fob version. This key fob is available at polycase.com I'm not happy with the button cell batteries as they don't last very long and the circuit doesn't want to run properly with less than 3v. I'm sure I can make the circuit smaller if needed to accommodate other ideas. I had fun making this one.
Anyways, any ideas you may have to improve what I've done would be appreciated. As soon as I get my 3mm led's in I am working on a ball cap version with a head activated switch. Should be fun at sports bars!
Also, I ordered some leds with 10 degree spread in hopes of extending the range even further, ideas on that would be cool too.