Bottle that can transform into a whistle

A bottle capable of producing a whistling sound, said bottle comprising:

• a vessel adapted to hold a liquid therein and having a top portion and bottom portion, said top portion having an opening adapted for the injection of and the removal of said liquid, said bottom portion having an opening including threads;
• a whistle member capable of producing a whistling sound, said whistle member including threads adapted to be removably attached to said opening of said bottom portion of said vessel by interacting with said threads of said opening, such that after said liquid is removed from said vessel said whistle can be removed from said bottom portion and used to produce whistling sounds;
• a body portion which includes said threads, and further includes at least one hole adapted for air to pass therethrough;
• and a cap portion that is adapted to rotate with respect to said body portion and includes at least one hole adapted for air to pass therethrough, such that when said at least one hole of said cap portion is aligned with said at least one hole of said body portion air can pass therethrough and produce a whistling sound;
• said cap portion of said whistle member further includes a tab member to aid in the rotation of said cap portion with respect to said body portion.