The name of Ani Niow's SteamVibe suggests. Catching sight of the thing itself sends an eyebrow heaven-ward. Finally, the name of the Flickr set sweeps away any remaining ambiguity: steampunk vibrator.
You're probably asking, does it really work? the answer is you betcha. its been proven to work (and vibrate) off of compressed air, I'm seeking a more powerful boiler than my pressure cooker so I can actually run it off of steam so please let me know if you know of one.
More photos, and details of its construction, are at The Lady Cartoonist: "[It's] machined out of a solid hunk of stainless steel (no easy task), and fitted with the world's itty-bittiest Tesla Turbine."
A steampunk robot penis machined in similar fashion to current-gen MacBooks? I think someone divided the Internet by zero.
steampunk vibrator [Ani's Flickr]