We can't execute script on our chat room. But we can retreive chart image with Google's [Chart API](https://developers.google.com/chart/image/docs/making_charts). [This node module](https://github.com/ryanrolds/quiche) can help us.  example ``` hubot chart chs=250x100&chd=t:60,40&cht=p3&chl=Hello|World ```