Mirror, mirror on the wall
I want to have a mirror that is able to talk back to you. Perhaps if you were feeling ugly that day with a big zit on your forhead the mirror could respond by telling you how beautiful/handsome you really are. After a heavy night of drinking you get up and the mirror could lecture you as you brush your teeth. The mirror could also have a transparent figure of a beautiful woman/handsome man. Further, the mirror could be used for self help, or to converse with you as you attempt to learn a new lanquage. The mirror could be your best friend.
Reward: Generous appreciation