I have only a few "Special Packaging" sets:One of my worst packages is the one gifted me of the 3D Wizard of Oz”. It is the size of a large shoebox and along with the Blu ray and various pamphlets — program for first night etc. that I have looked at once, it contains 3 tiny plastic reproductions of the gifts the Wizard gave to each of Dorothy’s companions. I have seen better quality from a gum ball machine!
The original Universal 3-pack release of the classic monsters: Dracula, Frankenstein, and The Wolf Man.
Those busts are excellent and I still regret they didn't see fit to do the same with The Invisible Man, The Mummy, and The Creature from the Black Lagoon. The discs were in the normal case used for the single releases so you can ditch the rest and easily display just the busts.
And the 3 for The Lord of the Rings Extended edition sets:
Like the Universal Monsters, those can easily be deconstructed and the discs themselves are in the cases that were used for the non fancy release.