Sci-Fi scribe David Gerrold wrote "The Trouble With Tribbles" in 1967. It's one of the most well-known Star Trek episodes. He spoke with John at Comic-Con about how he wants YOU to spawn a new generation of Tribble lore. (CONTEST INFO INSIDE)
Contest directions read:
"Take a photo of yourself with your Tribble in a fun, interesting, or unusual setting and upload it to The Tribble Gallery.