I desinged an enclosure for this diy colorfur heart kit (http://www.banggood.com/DIY-Colorful-Heart-Shape-LED-Flashing-Kit-p-973513.html) from Banggood because i wanted to give it as a present to my wife :-)
For more Details what you need to build your own heart look in the BOM.
Short buildlog: http://schwabenpilot.de/2017/03/13/valentinstag-geschenk-aus-dem-3d-drucker/
If there are any questions or suggestions for improvement, please contact me.
BOM
The author marked this model as their own original creation. Imported from Thingiverse.