Hologram Stand for Samsung S2 (version 2)

I think many of us have old cell phone at home. Well, I have several. They don't worth a penny for sale; so, I just make my Samsung S2 to become a lively decoration in my office.

The hologram pyramid can be cut form acrylic transparent sheet. You can make yours with plastic book binding cover, see the link below by Harit Bandi: -
http://www.instructables.com/id/HOLOGRAM-a-glimpse-of-future/

Or....simply get this: -
http://hologrampyramid.net

I have here 2 sets of bolt length. They bot