This Apple Magic Trackpad stand remix of jakecarpenter's original design has holes on the bottom where you can pressure fit magnets or rubber feet without adding to the overall height of the stand. I use my Magic Trackpad stand inside a metal drawer, and adding magnets as feet to the bottom do a good job of keeping it in place.
The author remixed this model.
My remix adds 9.9mm diameter by 2.6mm depth holes to the bottom of the original design, intended to hold magnets so the trackpad and its stand stay in one place on a metal surface.