556 Synthelmet thingy!

YouTube via MILQUETOASTE.

Synth Helmet. via sendling.
"Conglomeration of 556 oscillator divider, 4040 counter 741 filter and speaker mounted on a strainer mounted on a human. Counter drives LEDs for feedback to LDRs."

Cynthia announces MOTM format Quad low pass gates

via the My Synthesis Technology blog

Roland System 100m M-121 Highpass Filter Mod Update

Follow up to this post.

sjones put up a new image and audio here. Note there is a zip of more samples in the thread above as well.

Melekko Seq 1 Demo - First Look

http://malekkoheavyindustry.com/
You might remember Melekko as Josh and Paul Barker's (Ministry) project from these prior posts. Their latest project is the Malekko Seq 1.
Some basics:
It's up to 24 steps,
small and portable 7.38x4.70 inches
24 preset storage
tap tempo/Tap rhythm
slide per step (the toggles on top select on or off and can save to
preset)
quantization
variable randomization of both step AND note length

Siel Opera 6 LFO-demo

YouTube via kortemutka9. "racked" Opera 6.

Roland JP-8000

YouTube via analoguecrazy4
"Here are some sounds from my Roland JP-8000. I programmed all the sounds."

88 - this is doo doo baby (Chappelle remix 2/3)

YouTube via atishmeh
"Using the sampler to remix Chappelle's for what it's worth mix. THIS IS DOO DOO BABY"

Sequential Circuits Prophet VS + Pro-One by RetroSound

YouTube via retrosound72

"synth demo by RetroSound with two great synths from the 80`s by Sequential Circuits

digital sounds: SCI Prophet VS
bass: SCI Pro-One, triggered by the TR-606
drums: Roland TR-606"

Crumar DS2

images via this auction

Roland Juno-60

images via this auction