Free WiFi Rickroll QR Code

This is a sign with simple text advertising free WiFi, however, the QR is much more sinister than that. Rather than free WiFi, you are brought to Rick Astley's famous song, Never Gonna Give You Up, released in 1987. There are 4 recessed areas in the corners on the back that can facilitate a circular, 5mm diameter magnet if you want to stick it to your fridge.