Old MAD video tag or title on niconico douga

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Hi,

I'd like to know the japanese name or tag of a type of video that used to be popular on niconico douga on 2007-2010 (maybe there are still some people making these videos but I can't find them anymore).

In these videos the creator would take a character from an anime and then put a phrase/scene from that character for each hiragana/kana syllable.

For example for Kagami from Lucky star (this is the video I remember): あ(a) - Anta no tame janai. え(e) - Eeeeto. い(i) - Imi ga wakaranai. ...

I remember that there was many videos for many characters and anime but many of them were deleted and I can't find the videos I had favorited.

Thanks in advance.

Pic kinnda related