Rubber pull-string cube

A simple cube that prints flat and is internally held together by a single string. I've been tinkering with ideas around rubber filament lately and this is one of my first designs using the happy stuff.
Here's a vid of it coming together:
Printed flat in rubber without support.
If you found this amusing (or useful?), please make sure you share a picture (it makes my day each time someone prints something I designed) and be sure to peruse my other submissions which are almost as varied as they are many:
http://www.thingiverse.com/3E8/designs
Enjoy!