Folktek designer Arius Blaze created this awesome custom steampunk synthesizer:

The “Time Scape Wave Sequencer” is a sampler, processor and synthesizer with a built in 8 step sequencer. The touch board controls the polyphonic synth part which can be fed through delay or any combination of thousands of possibilities for wave shaping as well as the possibility of having the shape altered in time with the sequencer.

More photos are available at the Folktek site.