The Living Mouth / household/tableware

This design aims to making a change toward the ‘mouth’ of a cup.The mouth of this cup is made of a kind  of  soft and stretchy material to be distinguished from the body of the cup. And when pouring drinks , the  liquid will press on the mouth ,which can change its shape and appear a ‘tapering mouth’.Then the drinks will shed along the mouth and be poured out comfortably.