Methods and apparatus for enhancing an inflatable device. In one example, a first component adapted to generate at least one of light and sound is coupled to a second component that is adapted to facilitate insertion into an inflatable device. The first component may be an LED-based light source configured to generate single or multi-colored light in an interior space of the inflatable device once inserted into the inflatable device. The second component may be particularly configured with one or more valves or seals to facilitate a transfer of a substance (e.g., an inflating substance) into the inflatable device once the first and second components are inserted into the inflatable device. The second component also may be configured to conveniently facilitate an effective seal between the second component and the inflatable device.