Do you remember Tuvix, the short-lived character from Star Trek: Voyager that was created in a transporter accident that combined Neelix and Tuvok? The Glissotar is the woodwind equivalent of Tuvix, except that Captain Janeway hasn't killed it yet.
Dániel Váczi and Tóbiás Terebessy spent almost a decade developing this unique instrument that, instead of holes along the shaft, has a continuous opening that is held open or closed with a strap. Insert an ordinary alto saxophone mouthpiece that you can play a vast variety of sounds and effects, including movement between notes, over two and a half octaves.
-via Laughing Squid