So here is my idea for the post-credit scenes from each movie:
2001: A brief shot of the bohrok nests, and then one suddenly cracks open, similar to the bohrok commercial from 2002.
2002: Some kraata are briefly shown crawling into a cave (Teridax's Lair)
(I am skipping Metru Nui here, since those would be made later, and I am jumping directly to the Ignition Trilogy)
2003: A brief shot of Voya Nui is shown, and then we get a final shot, showcasing the Chamber of Life.
2006: The Mask Of Life is shown sinking in water, and a tentacle slowly creeping around, similar to the begging of the Barraki Commercial from 2007.
2007: A brief shot of Karda Nui, with some mysterious shadowy shapes are shown flying around (The Makuta)
2008: The Mask of Life crash lands on Bara Magna, and we get a brief shot of the Clicks approaching.
2009: Teridax is shown... and then he suddenly realizes that Mata Nui is still out there.
2010: Nothing to tease here, since this will be the last movie (unless you also do the Metru Nui saga).
What do you think? How would you do the Post-Credit Scenes?