Zebrana Logic are Carlos and Eduardo from Lima, Peru, who build and sell very cool looking and sounding synth boxes and FX pedals. You can get a filter or ringmod for $80-90, or full mini-synths for $80-120, and they're developing a proper synth with a keyboard. UPDATE: The only real problem is getting the stuff over from Peru - I was quoted $75 for shipping to the UK.
UPDATE: MT reader Sascha has bought one - pictures and sound samples are here on his blog Subtle Noise Maker.