This is pretty cool! Developed at MIT after the inventor blacked out and went to the hostpital.. 

Definitely a unique way to monitor drinks consumed during a night of partying, the Cheers ice cubes use LED light signals to track alcohol consumption. Read more: http://www.digitaltrends.com/lifestyle/these-led-ice-cubes-can-text-your-friend-when-you-are-too-drunk/#ixzz2IFpvNUd8