Two Zybahhod Yenyoni, one of them holding an udjudg.
The udjudg was a special musical instrument played by the Zybahhod Yenyoni. They were uniquely suited to play it with their "Y"-shaped naso-facial openings.[1]
Behind the scenes
The udjudg was created by Jennifer Kay, a Star Wars fan, for the backstory of her Zybahhod Yenyoni entry in the Design An Alien contest held in the Star Wars Galaxy Magazines.[1]
Sources
"Design An Alien" — Star Wars Galaxy Magazine 7 (First mentioned)
