funda para llave maciza - cover for solid key

thingiverse

This is a case designed specifically for distinguishing keys from one another. You can print it in various colors to differentiate between them easily. When printing reaches approximately half, you need to insert the key so that the printing process concludes and the key becomes completely covered with plastic. As soon as the printing reaches its midpoint, the word STOP will start appearing on the case. This is the precise moment when you should take advantage of the situation to insert the key into the piece being printed.