Sign Story/Lyrics idea.

In my final piece i would like to use the 'Sign idea' to interpret the lyrics of the song to match with action. I believe it would be effetive and would also mean less lip syncing for anyone who is not comfortable or confident with lip syncing.
I feel pretty strong about using signs to tell part of the story within the music video, i believe its a good way to illustrate lyrics, however in my music video i would like to try have the signs moving whilst changing, for example, from the top of my head i can think of a character on a swing holding up words and everytime they swing back and fourth the word changes telling the story, just an idea, to make it affective it would take time in editing, however i think its a good element.