-Game Boy with dead batteries
-Radio Controlled Ankle Grinders (in the form of car, truck, battlebot, etc)
-Mobile gaming station (known also as a Notebook Computer)
NB: in the case of the mobile gaming station, the wart is usually relocated halfway up the cord, rather than being plugged directly into the wall.
2)I keep dropping stuff behind the sofa, because the wall wart keeps me from putting the sofa against the wall.