Developer Jan Cumpelik is running an IndieGoGo campaign to put the Lunchbeat 1-bit groovebox into production.
The Lunchbeat is an AVR-based groovemachine with 4 real-time generated and tweakable 1-bit sounds and an 8 step programmable sequencer. The sequencer can send or receive trig pulse signal.
The project is open-source and licensed with CC BY-SA 3.0 license. It is available assembled or as a DIY kit. See the project site for details.