This is a desk mount for a Phillips Hue Play Light Bar. The light is held vertically at a 45 degree angle facing up and outwards from the desk.
The mount is basic and specifically designed as a push/friction fit onto a 25mm desk, although you may be able to adapt it.
There's a hold through the mount to help screw the original hex bolt to attach the light bar, although this can be a bit fiddly depending on the size of your alan key.
The author marked this model as their own original creation.