One of the best ones I have seen, is a couple who packed some Disney suitcases(probably bought at the
disney store), and had some lithium balloons attached to the suit case.
The kids were asked to open the trunk of the car, and when they did, the balloons popped out, some of the balloons were Mickeys of course, and the kids saw the suitcases with a small card attached that told them they were going to
Disneyland.