Exploitable Heart (Q42447)

With Valentine's Day just around the corner, I'm uploading this to inspire designs for the long-suffering significant others of Makerbot owners. Greg Frost made a valiant effort at making an openSCAD heart out of primitives for his broken heart http://www.thingiverse.com/thing:4683, but he wasn't satisfied with the small discontinuities, so I made this new and improved version. It's an implementation of Taubin's equation: http://mathworld.wolfram.com/HeartSurface.html.