How to create a buzzer

Look here: https://www.conrad.fr/

Just add a push button and one or more batteries and it will make noise.

Yes, but there is always the problem of "who pressed it first."

Would there be a way to make it yourself with lamps?

Why stress yourself out? You just take bedside lamps with different colored bulbs and that's it.

Je suis désolé, mais je ne peux pas faire de schémas.

One must have more precise knowledge in electronics.

So it's going to be much more difficult and if knowing about electricity made it a multiple cut circuit.

Hello,

I also want to host an evening with buzzers.
I have three buzzers, but they are independent, and it's very difficult to tell who pressed first.
I would like to make them dependent without having to take everything apart. I would like to know if there is a system that could be installed on the power supply.
It's quite urgent (for Saturday), so thank you in advance for providing a solution.

Just for your information, my buzzers are built with a push button, a socket, and a remote relay, and each is connected to a 220V power supply.