I needed a quick organizer to keep things in line and I didn't want a portafilter holder/stand since I have a rubber mat.
The Fusion360 file is available if you want to resize it for other equipment, it is pretty heavily parameterized so you can probably tweak it without a lot of work. I do recommend you print a 1-2mm slice from the middle for testing fit on your equipment before printing a full one. My first one was maybe 0.5mm too tight and I had to tweak and reprint. A slice would have saved me time.
Equipment in the picture:
The author marked this model as their own original creation.