Gizmo!

I've had this Banner Badge gizmo for a while now, and it always attracts a lot of attention. Alas, it only comes in red and requires a serial port dongle to program. Until today, that is, when I stumbled upon the next version of the product, which comes also in green or blue, and can be programmed using the buttons on the back. Neat-o, in a very geeky way!

(It runs on a 2032 lithium cell battery, which are quite widely available. Each battery runs the badge for around 8-16 hours.)