Bottles are very important for families with babies, but due to their own limitations, they will inevitably be discarded when children grow up. The design of the FUNctions bottle is designed to make the bottle function no longer necessary and the bottle can be used for other purposes by being equipped with a piggy bank and a portable lamp module, thereby increasing the function and interest of the bottle. The piggy bank module uses a "ten" coin port to facilitate the placement of coins; the portable light module has an LED light, the rope can be used as a handle or lanyard, and the length of the rope can be adjusted. The bottle embodies the Chinese sense of thrift. Environmental protection, multi-functional integration, embodies the concept of care and sustainability.