Switching/Splitting/Diverting 15amp Power

Let me preface this by saying that I am not looking for advice on how to do something illegal, I'm not going to attempt to do electrical work on my own, and, no, I am not a licensed electrician.

Now that that's out of the way...

I'm having a 15amp power outlet installed in my home soon. I rent, so the landlord has approved it to be installed in a place which is a few meters away from my workshop area. I'm only able to get a single point GPO. So I will be running an extension cord to my workspace.

I have one 15amp machine now and I've all but decided to get a second one.

So here's what I would like to do... In an ideal world, I would use the extension lead to get the power over to my work space. Then, I would like to plug in some kind of splitter/switchbox device which has two ports and will allow me to toggle between them. So when I want to run my table saw, I throw the switch one way, and when I want to use my combo machine I simply throw the switch the other way.

Is anyone aware of a device like this?

Otherwise, does anyone have an idea for how to simplify this scenario?

Only looking for legal options here. Can't stress that enough.

Thanks a lot in advance,
Luke