heart pin
thingiverse
Heart to print for pins use the clasp just glue to back epoxy works great you can get the pins at Amazon $7.99 for 50 http://a.co/d/hewHFeO
Download Model from thingiverse
With this file you will be able to print heart pin with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on heart pin.