A Simple Remote On/Off Switch?

There are many different options for this.

If you want one that looks like a switch, the Cooper 9500 accessory switch is battery-operated, but looks just like a wall switch. You can have that on the table.

I personally prefer the smartenIT 3 toggle switch. It’s also battery operated. Looks good on either a wall or lying flat on the table.

Many people like the Minimote handheld remote which has four buttons. That gives you a lot of options as long as it doesn’t get lost.

The following topic lists many of the buttons/remotes that people have used with SmartThings:

Most of these don’t have to be right next to the device that you want to control. Instead, they send the message to the hub, the hub sends a message to the device. So you can also use them to change the mode, to turn off a group of lights, or to trigger a SmartApp. So just depends on exactly what you want for each use case.

I like the smartenIT 3 toggle in part because it’s very intuitive for guests to use ( it looks and feels like a switch) and it’s big enough to label.