I came across this mug while having lunch with a friend. I immediately thought about what would they do with the mug if one of the advertisers decided not to continue advertising with them. Would they cross out the advertisement?  This of course got my mind working on a solution to this, likely minor, problem.

One possibility is to embed an e-Ink display on the outside of the mug, since they can bend, and update the advertisements wirelessly. You could charge the mug using the new wireless electrical systems that are appearing now. Too expensive at this time, certainly, but perhaps not in the future.

However, cleaning these mugs could be a problem…

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