"Did you know that trashed batteries were useful enough to light up LED?" An average "dead" battery has .08 to 1v of power remaining, meaning that two will illuminate a bulb. In order to make recycling batteries more appealing, designer Sungwoo Kim came up with this Energy Seed concept. Each dead battery you place in the receptacle, the brighter the light. The batteries will have to be disposed of once it fills up, but it would be great to have interesting centralized locations for what is right now a very inconvenient and unglamorous recycling process.
And for while it's still up, this cam feed I saw posted by Ana Marie Cox: