SlashGear

Sometimes the simplest ideas are the best.  If you’re tired of answering people’s inane (and insincere) “how’re you?” questions then perhaps you need one of these emoticon badges.  A button on top lets you cycle through the stored LED patterns, so you can easily flick from “sad” to “super-happy” when someone offers you a free coffee.

DIY with the instructions and parts-list linked from the Flickr gallery, there’s a video of it in action here.

Flickr [via MAKE:]