I'd have been happy to submit some form of artistic contribution - a montage of game screenshots with story-boarding, for example - but I don't have access to any kind of digital recording software, I most definitely don't show my face on digital footage that I don't have complete control of, and I'm mute, so, I can't and don't vocalise either. If video submissions of players chatting about stuff if what's requested specifically, I can't do that.
I'd probably just have told the story of Ka'chu'ka, Githyanki 'wizard', with screenshots anyway... and hilarious as it is I'm not sure that would be counted as the kind of endorsement they want ^.^
