Um... if the power goes out, I don't even think MacGyver could whip something up with those four components. This is the reason why when it snows, I refuse to leave my house. Looks like I'll be in my bat-cave again tomorrow! Good coffee, and my boys will home to drive me crazy.
In all seriousness, please be careful if you reside in a snowy area :)
*Photo from the WGAL Facebook page*