UPDATE: Universal is releasing an official Flux Capacitor blu-ray edition (see below). Hooray! I remember posting this design in 2010, a few months before the 25th anniversary set came out. Nice to see it become a reality.
Here is the Universal set (the Flux itself is just a static image on a box) coming out on October 21st:
Dave's Geeky Ideas 
SHUT UP AND TAKE MY MONEY!
One of the best ideas I’ve seen you post!
Great Scott!! What an awesome concept! Shame that there’s not a way to tie in something from Part 3 on the interior of the box seeing as you have the plate and the hoverboard covering Part 1 & 2… maybe throw in a print of the Doc and Marty photo in front of the Clocktower clock as a backing plate to the disc cavity?
Some very good additions definitely. Hopefully Universal Studios can see the merits of the main case and all the potential pack-ins too.
I can’t….there are no words…..