Santa, I want one

[46er]

I have a smaller one for small devices, but now they have sizes that can jump start a car as well and are small enough to fit in the glove box or console. $99 on Amazon.

http://www.thepowerall.com/product.html

 

[RednekF350]

That would probably be very useful for parents of young kids on long drives too.
Instead of the classic backhand dealt swiftly from the front seat, you could have the cables connected to the car seat and with the push of a button, ZAAAP ! No more whining for the rest of the ride.

 

[46er]

A cable on each ear lobe would work longer