The Ice Bucket Challenge is well on its way to raising plenty of money for ALS research — and its leaving no tech exec dry. Tesla CEO and billionaire inventor Elon Musk took his turn taking a cool, refreshing ice-water bath today. Musks five boys, Griffin, Xavier, Damian, Saxon, and Kai got a good laugh out of dousing their father, though the contraption isnt quite as impressive as Bill Gates over-engineered rig. Musk is apparently under the weather, though, so maybe he wasnt quite up to the task of one-upping the Microsoft co-founder. …