Dear High-tech Superheros

I have developed a web reporting application that wraps a third-party charts
package.

My clients have asked about the possibility of producing interactive
PowerPoint decks out the reports I produce. By interactive, I mean the charts
cannot be images, but must function in a way similar to MS Chart.

I have looke through the "Create Add-in" documentation, and can create a
basic Add-in; but this doesn't seem to allow me to place an object on the
page in the same way that one can an MS Chart object or even a Text object.

So: Is there some way I build the eqivalent of an MS Chart object?

Any help would be greatfully accepted.