Seen at Bastel Instruments stand, a wooden Midi keyboard. 
Have a look at their website, they have some nice MIDI gear (e.g. a micro SD card sampler).
Reminds me of the bone keyboard in the Goonies 
Hey you guys!
Flintstones!
I have no clue why, but this reminds me to “Army of Darkness”…
Wood, wood, wood, wood…