There is none. These are not made. They should not be made. We will not help you make these.

The reason power plugs/sockets are gendered the way they are is to prevent energized contacts from ever being exposed to touch. A cable that reverses the gender can and almost certainly will expose mains voltage to exposed contacts, which almost certainly will electrocute someone or cause a fire.

Bad stupid wrong reasons people come up with for wanting these:

• Attaching a generator to the circuits in a house. Plug one end into the generator's outlet, plug the other into a wall socket, and now that circuit in your house, and possibly others, are energized. In addition to the cable being a death hazard if unplugged from the house end, I don't know how circuit breakers behave when the source is on the load side, and if you don't throw the main breaker you're energizing the lines coming out of your house, meaning you're putting power on the mains. You probably want to do this during a power failure, which means linemen might be working on the lines, they expect them to be cold, but because an idiot bought a generator and some parts from aisle 3 at Lowe's, it isn't. If you're trying to run your generator while attached to the grid to try to reduce your power bill, you deserve the resulting fire. There is a correct way to do this; you can get plugs and sockets designed for this, you'll often find camper trailers equipped with them, and you need an interlocked switch that prevents both the generator and the power grid from being attached simultaneously.

• You strung your Christmas lights backwards, and now the female end is closest to where you want to plug them in. Okay fine, I'll just get a male-to-male cable and plug them in backwards, what can go wrong? The male plug at the end of your daisy chain dangling somewhere in a bush, under your eaves etc. in the winter weather getting rained or snowed on is what can go wrong. The correct solution is pay attention to what you're doing, Clark Griswold.