As said during the meeting, do throw up whatever official DVDs you might have. When the titles are up, I'll set up a poll so you can vote for whatever title you want.
All 7 Kara no Kyoukai movies. The shortest (Overlooking View) is 48 minutes long.
Code Geass......But I don't think that anyone would be watching this.
NANA: ......But this doesn't really apply as a one shot.
The Place Promised in Our Early Days: Awesome movie, but too long.
Gurren Lagann: Awesome series, and can easily be watched any time.
Umm....I think that's it for me. Do post what you have. Personally, and because of my own interest, I'm leading towards Kara no Kyoukai. Ahaha.