My X1C is in a LACK table cabinet I built and I do not have the AMS sitting on top of the machine. I needed a simple way to slide the top glass back for ventilation. I originally designed this without a place for a light, but since I had a USB LED light bar laying around I decided to modify it to hold the light bar.

This prints in 4 pieces and easily fits together. It has a channel for the USB cable on both sides depending on which is more convenient.

I don't have a link for the LED light bar but the dimensions are:

Maximum size: L: 36.5cm x W: 1.6cm x H: 1cm

Minimum length: 33cm

This link is for a similar one that should work: https://www.amazon.com/Uonlytech-Reading-Strip-Lights-Light/dp/B0CBMVY1ZP