Super GrooveAxe from Gadget Gangster on Vimeo.
"The Super GrooveAxe is a mini drum machine / sequencer. 4 sounds are available, and the playback speed of the pattern can be controlled. It's available as a kit on Gadget Gangster - gadgetgangster.com/241"
You can find more pics and instructions on instructables
via Nick: "I've just finished and put up the Super GrooveAxe, it's a mini drum-machine. I'm pretty proud of the project, I did the pcb design and grandtippler did the software to run it. Your readers might find it interesting - there's more info on instructables - http://www.instructables.com/id/Super-GrooveAxe-Mini-Drum-Machine/"