Pixel Pen Stand

I've been browsing through Thingiverse for a while searching for stands that would work with the Pixel Pen but wasn't satisfied with any, so I decided to design my own. Clearly inspired by the Wacom holder.

My main concerns where that it should fit (the pen diameter is about 11mm), and that it could stand vertically with the tip down without pressing it against anything. Since it is an active stylus, it activates when the tip is under pressure - hence, leaving it standing over the tip would quickly drain the battery.