empty bucket challenge
When a TV show is successful, you rest assured that you'll see a few spinoffs. (And yes, I will be watching "Better Caul Saul" when it starts airing). As it turns out, the same is true of viral-Internet-charity-thingies.
A Brazilian non-profit called OndAzul is now urging people to take the Empty Bucket Challenge - using the popularity of the IBC (you're damn right I just created an acronym) to point out the amount of water we all waste each and every day. A smart use of borrowed interest - and you don't even have to dump anything on your head.