Here's a very clever eject button that fits into most automobile cigarette lighter sockets. Unfortunately, the product listing clearly states that it's "designed for show only." It is a functional cigarette lighter though so I guess they mean it won't actually trigger your ejector seat.
"Kei Project Red Eject Ejection Seat Push Button Car Power Plug Cigerette Lighter 12-volt Accessory Fits Most Vehicles" (Amazon via Dangerous Minds)
