Tilt Shift Timelapse

I have decided to explore the world of Time-Lapse Tilt-Shift creation this summer when I embark on a short cruise (courtesy of the Queen Victoria / Cunard). Providing one can position the camera high enough above the subject, it is possible to create some very convincing tilt-shift effects by simply using some kind of mask to alter the focus of some parts of the image (i.e. to create a short DoF). Therefore, the plan is to try and position the camera high enough on the ship to hopefully capture a series of still images which can later be processed to give the tilt-shift effect. I have already made a prototype sequence, shot from my office window and the result was most pleasing.... As can be seen, simply narrowing the DoF in the image (by de-focusing part of the image via a mask), turns the sequence into a "minature". As mentioned, this only works if one can position the camera way above the subject to give the impression of a "giant" peering down over it :)