I know I've mentioned my love of stop motion animation before... throw Blythe dolls in there and you have probably the best combination ever. (Move on over, Komaneko!)
There are a bunch on Youtube, but my favorites were all posted by BlytheTheater. Their profile is mostly Japanese, so I'm not sure if these are actual Blythe tv spots, or just fan films.
New item for to-do list: procure stop motion camera.
Also: procure Blythe dolls.