B399-10 Mini USB Fan with Phone Stand

A desk fan the size of a mug that holds a phone at the same time, so the thing you are watching and the air moving past you come from one object instead of two.

It charges over USB in two to four hours and runs off its own cell after that, which matters on a balcony or a bedside table where the nearest socket is across the room. Single speed, 1.5 W, and light enough at 115 grams to move room to room without thinking about it.