Chris Pratt accepted the Ice Bucket Challenge by swigging some vodka.
Bill Gates accepted the Ice Bucket Challenge by coming up with his own design.
Stephen Amell nearly caused the Internet to come to a screeching halt when he accepted the Ice Bucket Challenge shirtless.
Now, Charlie Sheen has come up with the most Charlie Sheen-like way to also bring attention to ALS, taking on this viral Challenge without using water.
So... what was in Charlie's bucket? And why should he be commended for taking this unusual approach? And who did he call out to do the exact same thing?
The answers to all these questions await!
Here's a look at many other celebrities who have taken on the ALS Ice Bucket Challenge: