The Navy has tested using Xbox controllers for controlling periscopes. It's saves tens of thousands of dollars each over the fancy custom joysticks they used to use. If one breaks, it's easy to replace. It also helps a lot for training--the old ones took a few hours of training to get new users comfortable, but since a lot of the users are dudes in their 20s and 30s the Xbox controller is a lot more intuitive

Guitar hero guitars and rock band drums.

Really, we should be hiring twitch streamers to pilot these multimillion dollar vessels.