Fake tilt shift photographs have the effect that make them look like miniature models. The reason why they are called “fake tilt shift” is because instead of using a tilt shift lens for a DSL camera, you can digitally edit the photograph to give it a similar effect. The trick is to blur out different areas of the photograph depending on their depth, or distance from the main object of focus.

Tilt Shift Photoshop Tutorial: How to Make Fake Miniature Scenes
Faking Tilt-Shift – a Tutorial for Realistic Miniaturised Photos
TiltShift Maker

Favorite Tilt Shift collections

50 Beautiful Examples of Tilt-Shift Photography
41 Amazing Tilt-shift miniature faking photographs
Flickr Tilt-shift Miniature Fakes Group