The present invention generally provides an anchor cap or a motor cap for mounting a monopod. The cap includes a navigation light power port typical of a marine vessel, such as a bass boat or speed boat. The cap would connect to the top of an anchor affixed to the marine vessel. The monopod can then provide power for mobile accessories, such as cameras and smart phones. The monopod may be fitted with extendable, bendable arms for mounting additional cameras or other electronic devices or for providing additional accessories. The box could also include other power outlets, including universal serial bus (USB) or standard power outlet ports.