A few weeks back we posted some miniature synth models - and the downsizing continues! Audio Relics run a website selling small but nicely formed pin badges, ranging from reel-to-reel machines, to amplifiers, turntables and synths. They currently have two synths on show: the DX7 and the Jupiter 8 with more to come and suggestions open. They also have a Technics 1200 model for DJs and record enthusiasts:
The synth models shown here are is $15 plus shipping each. Details on audio output and MIDI capability unspecified - but they do look great.
Deep look at the new generation interface