Adobe 3D

show your models (the digital ones…) in pdf:

You can fill pdf’s with 3D content and do a lot of interaction. You only need the Acrobat Reader 7.0.5+ to view them (some sample files available).
Maya and 3DS users can put their models via copy/past into a pdf.

Not that cheap, but the idea is great.

Wow, thats impressive. :eek: