Here are two projects I did with coordinating charm packs. For the D9P I used 4 (to get the matching look) and then used the extra's plus one more for the table runner.
http://alimaui.blogspot.com/2010/09/...-projects.html
http://alimaui.blogspot.com/2010/09/...d-plum_04.html
This is another charm pack pattern, using only two charm packs (but equal amounts of solid white cut to charmsize.)
http://www.ohfransson.com/oh_fransso...ilt-redux.html
Here is a tut that uses just one charm pack that I have been meaning to try.
http://www.quiltingboard.com/t-79336-1.htm
Here is a recent post of mine, all the projects here except for the last one used charm packs. (Figgy/Christmas used three, the next two used two coordinating, and the taggy just uses sixteen charms.