If you actually want to communicate information.. (Score 2, Informative)

You are explicitly searching for something cute and flashy to show customers, so this is kind of off-topic.

But if someone ever needs to visualize data so that other people can derive a lot of information in short time, i just can recommend reading Stephen Fews "Information Dashboard Design".
He covers the most common mistakes (i.e. using gauges, pie-charts, lots of color, wrong kind of interactivity, etc) and shows some of the worst dashboards from BI-Tools that are actually used in advertising the product. For most of these horrible examples a alternative, better solution is presented.