A bottle has a top opening, a bottom opening, and a removable bottom. The removable bottom is coupleable to the bottle to seal and unseal the bottom opening and has a stem projecting outward from the removable bottom. The removable bottom is configured to be removed from the bottle and inserted into a mold such that a frozen solid is formable about the stem. The removable bottom is further configured to be coupleable to the bottle such that the frozen solid and the stem are positioned within the bottle and the bottom opening is sealed.
