Summary
For the next two weeks, Thingiverse will be flooded with hearts. This is my contribution. I created a base heart shape and remeshed into a low poly version. I used the triangulation of the low poly version to create a wire-based model. The wire model can be used as a pendant by feeding a thread through the mesh structure. I also added a model with a small eye on top the heart.

I ordered it on i.materialise in polyamide polished blue. I will add a picture of the printed model when I get it.

I am sure your girlfriend will also love this as a valentine present!
Learn why I created the heart shapes on my blog: http://make.petervdb.be/2016/01/31/fablabtechnopolisgone/