Remixed to fit a Google Home Mini designed to work with prusa MMU. Built for a 1st generation Mini. The size of the 2nd generation is the same so it should fit, but it appears to have a different type of power cable so you might have to tinker with the cable inlet cutout to fit a 2nd generation. 

For MMU printing of the rings, import the STL into prusa slicer, hit split into parts, and select your extruder for each part.

I had to do the cover as a 3mf file as I couldnt get the mesh part to split correctly as a stl. Just import the 3mf and slice. note that the main ring will be printed with extruder 1, and the detail parts will be extruder 2. I also included a non-mmu ring stl.

For the stand, load the ring and words at the same time and click yes to the prompt. The ring wont fit on the i3 bed, so I included a pre-cut version along with the uncut version. For non-mmu printing, only load the ring file and the words will be printed as cut outs.

You will need to print out 5 of the rings and notched rings, and 10 of the small rings.

I used CC3D silk silver and silk copper for the case/cover/large rings and Fillamentum crystal clear iceland blue for the small rings (100% infil so i didnt get odd patterns with the LEDs) and used Prusament galaxy silver and jet black for the stand. 

For the LEDs I used: https://smile.amazon.com/gp/product/B00HSF65MC/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1

and Power supply: https://smile.amazon.com/gp/product/B00DKSI0S8/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1