When I was a kid, I really, REALLY got into military flight sims, particularly those from MicroProse.
One of my favourites was F-15 Strike Eagle II, a particularly accessible take on the 16-bit era jet fighter sim, and a game that I used to like to dress up to play. I’d wear a green bomber jacket, a backpack (to simulate both a parachute and a seat belt), a balaclava (to simulate a helmet, in the absence of anything like a cycle helmet or the like), sunglasses (goggles) and an “oxygen mask” crafted from a bit of paper, some duct tape and an old vacuum cleaner’s hose.
My parents and brother referred to it as “The Elephant”. I thought it was badass. Whether or not it actually enhanced my enjoyment of F-15 Strike Eagle II is probably debatable, but I do know that I still enjoy this game today!