Flask with attached tumblers

1. A transportable flask, comprising:

a bottle configured to hold a liquid beverage, the bottle comprising:

a neck having; a first threading;

a first double wall; and

a first magnet in the first double wall, wherein the first magnet is in a portion of the bottle opposite the neck;

a cap configured to attach to the bottle and prevent removal of the liquid beverage when the cap is attached to the bottle, the cap having:

a second threading, wherein the second threading is configured to mate with the first threading of the bottle; and

a second magnet in the portion of the cap opposite the second threading;

a first cup releasably attached to the bottle, the first cup comprising:

a second double wall; and

a first ferromagnetic material in the second double wall at a bottom of the first cup; and

a second cup releasably attached to the cap, the second cup comprising:

a third double wall; and

a second ferromagnetic material in the third double wall at a bottom of the second cup.

2. The transportable flask of claim 1 , wherein the first double wall of the bottle includes a thermal insulator.

3. The transportable flask of claim 2 , wherein the thermal insulator comprises a vacuum.

4. The transportable flask of claim 1 , wherein the bottle includes a first inner coating.

5. The transportable flask of claim 4 , wherein the first inner coating includes electropolished stainless steel.

6. The transportable flask of claim 1 , wherein the first cup includes a second inner coating.

7. The transportable flask of claim 6 , wherein the second inner coating includes electropolished stainless steel.

8. The transportable flask of claim 1 , wherein the first cup and the second cup are interchangeable with one another.

9. The transportable flask of claim 1 , wherein the first magnet comprises a permanent magnet.

10. The transportable flask of claim 1 , wherein the second magnet comprises a permanent magnet.

11. A transportable flask, comprising:

a bottle, wherein the bottle:

is waterproof;

is configured to hold a liquid beverage; and

includes:

a neck, wherein the neck includes a first threading;

a first double wall;

a first inner coating, wherein the first inner coating comprises electropolished stainless steel; and

a first magnet in the double wall, wherein the first magnet is in the portion of the bottle opposite the neck;

a cap configured to:

attach to the bottle; and

prevent removal of the liquid beverage when in position; and

includes:

a second threading configured to mate with the first threading of the bottle; and

a second magnet in the portion of the cap opposite the second threading of the cap;

a seal between the cap and the bottle;

a first cup releasably attached to the bottle, comprising:

a second double wall;

a second inner coating, wherein the second inner coating comprises electropolished stainless steel; and

a first ferromagnetic material in the second double wall at the bottom of the first cup; and

a second cup releasably attached to the cap, comprising:

a third double wall;

a third inner coating, wherein the third inner coating includes electropolished stainless steel; and

a second ferromagnetic material in the third double wall at the bottom of the cup.

12. The transportable flask of claim 11 , wherein the seal comprises a silicone gasket.

13. The transportable flask of claim 11 , wherein the first ferromagnetic material and the second ferromagnetic material are comprised of the same material.

14. The transportable flask of claim 11 , wherein the first ferromagnetic material comprises iron.

15. The transportable flask of claim 11 , wherein the second ferromagnetic material comprises iron.