I made this balloon Rubik’s Cube centerpiece as well for an 80’s themed High School Reunion.
The great thing about this piece is that it is 4 sided and can pretty much be seen from every angle,lol.
This reminds me of a really cool book called The Secret of the Cube, which is a really cool imagination and self revelation exercise. My husband and I have done it and really thought it was really fascinating. http://www.amazon.com/The-Cube-Secret-Annie-Gottlieb/dp/0062512668
Picture of my work below.