A system and method for securing a container to a railing of a transport surface is disclosed. The system includes a capture member and a locking member. The locking member is configured to be attached to the surface and to securely engage one end of the capture member. The capture member includes one end configured to securely engage the locking member and a second end configured to securely engage the container. The locking member is optionally configured to require a key to disengage the capture member from the locking member. The method includes attaching the locking member to the surface, disposing a container on the surface next to the locking member, and positioning the capture member such that it securely engages the locking member at one end and securely engages the container at the other end, and thereby secures the container to the surface.