A San Francisco start up called ReGrained has introduced "beer bars". The beer bars essentially made from leftover brewing grains...
According to Forbes "All of the grains used in their bars come from craft breweries in the city, and their other baking ingredients, such as almonds and puffed quinoa, are sourced from environmentally responsible producers, some of them organic."
Honestly though, they had me at "beer." I am most definitely down to try anything made with beer!
Source: YouTube