There's a trend lately with interactive packaging, and I think this is going to be something that's going to develop further in the future, taking design to the next level. Here's a fun one to check out... connect the dots and have some fun while you sip on some wine.
Designed by Xisco Barceló, Vino Pinto Punto, explores that very idea by creating a label with a cryptic image, so by "connecting the dots", drinkers can contribute to the final look of the product. This makes each bottle unique in its own way.