This is a humorous Rick Roll wifi sign. On the back you can enter your actual guest WIFI info either write it in or use a tool like Tinkercad to enter your guest wifi information. So if they follow the instructions on the front to flip it over they will get the WIFI info but if they ignore the instructions and they scan the QR code they will be brought to the following Rick Roll video.

https://shattereddisk.github.io/rickroll/rickroll.mp4

I have seen other items like this in the past but I prefer this QR code because most go to youtube which tends to play ads but this link goes straight to the video and auto plays it. Also I liked the idea of a sign where if they actually follow the instructions they will be able to get onto the guest WIFI and only if they ignore the instructions do they get Rick Rolled.

Ignore the lower right corner of my print, it pulled away from the bed and so it looks terrible, but it still works so I did not stop it or reprint it. If someone has better luck with their print please post a picture of your print and I will update the posting.