Hey Michael, does yours also say "I love you"? and if so, do you have a link where I can get one for my wife?
I haven't tried actually printing these designs, but I just made a preview image for you for what an "I love you" design might look like. I'll post the notebook tomorrow so you can play with the export settings and maybe send it off to Shapeways to get printed. If you do, please share the final results with us.
Here's the notebook for the design I posted last night (aslo attached to this post). You can see I only made very slight modifications to Vitaliy's code. I added the loop at the end in Blender. Here is a link to some earring designs that have been submitted to Shapeways. I think the level of detail in my designs is basically doable with current 3D printers.