I can't recall why I made this particular stand, but here it is. What it holds is ultimately for you to decide, but here are some of the things that fit (within reach of my keyboard):

• Full size Raspberry Pis (with their official cases)

• Playstation / Xbox controllers (the two slots are for zip ties; use them to keep the strain off of the USB Micro port while charging)

• Half-sized breadboards

• Completed circuit boards (up to a certain size, of course)

This stand is also kind of useful for photography; my build of Boldport's Stringy was photographed on a yellow version.

There are two versions, one with a flat area where things can nest and one without. The one with the flat area (deg-stand-lip.stl) is preferred (and is the one that got tested with all of the items above).