I think they should sell a take home pair of 3D glasses that would be good for all attractions...would be a cool little souvenir for people.
For example when Avengers came out last year, they had special edition 3D glasses, why wouldnt they be able to do something like this for a take home souvenir from the parks:
While I think the concept is really cool, I can't see how it would transfer to HP. It could work for certain attractions...