System and method for filling containers with fluids

An apparatus comprising:

• a housing comprising an opening at a first end, and a plurality of holes extending through a common face of the housing at a second end;
• a plurality of flexible hollow tubes, each hollow tube attached to the housing at a respective one of the holes at the second end of the housing;
• a plurality of containers, each container removably attached to a respective one of the hollow tubes;
• and
• a plurality of elastic fasteners, each elastic fastener clamping a respective one of the plurality of containers to a corresponding hollow tube, and each elastic fastener configured to provide a connecting force that is not less than a weight of one of the containers when substantially filled with water, and to automatically seal its respective one of the plurality of containers upon detaching the container from its corresponding hollow tube, such that shaking the hollow tubes in a state in which the containers are substantially filled with water overcomes the connecting force and causes the containers to detach from the hollow tubes thereby causing the elastic fasteners to automatically seal the containers,
• wherein the apparatus is configured to fill the containers substantially simultaneously with a fluid.