In the photo I have it printed on a mk4s.
Using 3 colors of PLA and swapping them on the correct layer.
Ironing was enabled (Not really required, In fact I might disable it if I ever decide to reprint)
The author remixed this model.
Remix for: https://www.printables.com/model/871943-heart-keychain
I filled the keychain-hole by adding a small block and combining.
That way the model can be used as wall decoration in my classroom.
I pinned it to the wall using some small needles surrounding the model. That way the mount is more secure, compared to the old keychain-hole.