Key blanks for Gerda from Poland

I just wanted to check if it is possible to print fully operational key.
Unfortunately it is possible...
With this key blanks you need just a one photo of key teeth and something about ~15 minutes :/
I uploaded *.stl file and source file from DesignSpark Mechanical.
Enjoy.

https://www.youtube.com/watch?v=S2cSk4LMpTE