If you touch the package, it will scream and run away--changing its course when it strikes an obstacle.
When you lift the gift tag, light strikes a photocell and operation commences. Motors and a sound module are controlled by an Arduino (and Arduino Motor Shield).
Major components required are:
Motorized toy--Kid Galazy Morphibians Rover Remote Control Car; Amazon.com
Arduino Motor Shield
Recording Module--Radio Shack 276-1323
(7) AA batteries
9 V battery
tape, screws, mounting hardware, wire, wire wrap wire, heat shrink tubing, solder
cardboard, wrapping paper
support structure (I printed mine with a 3d printer--it could be made from plywood) http://www.thingiverse.com/thing:38370