Beginning this year I published an iPad 3D model viewer (works on iPhone as well, but there is less real estate).
3D Model View is an ios 3D model viewer that supports several 3d formats and allows realtime material editing amongst other features.
The next update I'm working on will include an AR feature, something i'm thrilled about!

Any 3D object just 'sitting' on a marker, (in this case my phone).

And what do you know: It is the Doc's Delorean from Back to the Future, how cool is that!

In fact it could be any object in a format the App can load and handle..

B.T.W, sorry: no audio

The rendering is done in OpenGL, using custom shaders. 
The camera image is processed with Pattern recognition techniques to determine the virtual objects's position in the real world.

More info about the version that is currently released (without AR) at http://3dmodelview.com

I made a virtual impression (in Blender) of what Jay Leno’s garage could look like with some famous movie cars in it.

In order, from telft to right: Deloraen from Back to the future, Batmobile, Ghostbusters car and Skyfall's Aston Martin DB5..

jaysgarage

Maybe a dedicated 'movie' wing is a good idea?

Model credits:
Batmobile: Blendswap user Xuan (blend 18504)
Ghost busters car: Blendswap user siciliano87 Ghostbusters car Ecto 1
Back to the future deloren: Blendswap user benjob Back to the future DMC DeLorean
Skyfall Aston Martin DB5: Arkady Kazaryan (Car Aston Martin DB5 N280611) archive3d.net

All other stuff: Me

A material study in Blender (http://blender.org). 

I did some experiments with a mixed material shader for 'rough gold'.
I used an anisotropic and a shiny shader, the mix factor comes from a noise texture, which is also used for the roughness ..

materialstudy

The Nodes are configured as below:

Rough Gold Shader

Checkout my Work in Progress 3D Model View iOS App with material editing.
Impression:

3d-model-view-4

 

 


Model credits: Er.akshay sharma, GrabCad (STL model)

Download on the App Store