The Tux 'n Bill(TM) screensaver features a configurable number of Linux Tux penguins suddenly investing your windows desktop. Some of them wear a construction helmet with a light torch on it; some others do not wear anything. However, all of them share the same goal: To get your windows desktop rid of its icons. Arguably, a benevolent character watches.
||Windows NT/2000/XP/Vista, DirectX