About this 3D model

Based on the beautiful design (http://www.thingiverse.com/thing:246864) by Roman Hegglin (http://www.thingiverse.com/roman_hegglin); modified to add supports for printing, and added letters *inside* the heart. You can modify further (e.g. to change the letters) with Tinkercad: https://tinkercad.com/things/agFA9z9Gj6D