I have to applaud this designer for his creative wackiness! Wonsik Chae had a concept to let “light forms flow easily”… His ‘Lighting Bag’ resembles a Lipton tea bag (except for the tag at the end of the string that says “Draw a Light” ). But immerse this bag in water, and magically, a fluorescence appears and starts to glow. Once the “tea” bag is immersed in the fluid, the contained “fluorescent molecules” catalyze with the liquid medium to let loose a steady stream of liquid light. The effect is very like that of amber tea streaming from a newly wet bag. It can then be used to create liquid light in any form the user pleases!

http://www.onesik.com/Lighting-bag2.html