Lock your cock up in chastity.
Just slide your limp cock into the cage, lock the appropriately fitting cock ring around the base of your cock and balls, and secure it with a padlock. At this point you're not getting out without a key or some tools.
The Chastity Cock Cage Specs and Benefits:
The cage has an inside length of 3" and an inside diameter of 1.5". The tip of the cock cage is a 1/2" in diameter.
Material: Cage: Aluminum alloy (nickel-free), Rings: Zinc alloy (nickel-free)
Note: The Chastity Cock Cage comes with 3 steel locking cock rings to ensure that your chastity device fits well: small (40mm in diameter; 1.5" in width), medium (45mm in diameter; 1.75" in width), and large (50mm in diameter and 2" in width).