This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/6KLX1hvOQbY
I got tired of worrying about whether I was going to lay my enormous phone down with camera glass on the desk top or ion-strengthened glass on the desk top. Both seemed just too fragile to risk. So I whipped this little pyramidish thing together. I'm going to stick felt feet on it tomorrow. Otherwise, it works pretty well at holding a slab of technology mostly upright.
I made it with 35% fill; I wanted a bit of heft. It weighs in around 85g.