I have a multi device USB hub. It has a switch that lights different LED's depending which computer it's currently assigned to so I made these little ‘hats’ that velcro onto little tabs on the corresponding monitor to show which monitor is currently assigned to which LED (which is why I use velcro, so if the computers change, switching the hats is easy).
The base with the poles is used to store the unused hats.
The author hasn't provided the model origin yet.