Invented in 1967, the Dübreq Stylophone is a small synthesizer played by touching a built-in stylus to the metal keyboard. It was famously used on David Bowie's "Space Oddity" and Kraftwerk's "Pocket Calculator." I just spotted it in Restoration Hardware's catalog for $29. I was slightly surprised to see it there, but not too much as Restoration usually has terrific gadgets and toys for sale along with their classic (and costly) American home furnishings. For more Stylophone fun, check out the below video of Brett Domino performing a "1980s Hits Medley" on the device. (UPDATE: They're only $20 at ThinkGeek!)
David Pescovitz is Boing Boing's co-editor/managing partner. He's also a research director at Institute for the Future. On Instagram, he's @pesco.