Permanent padlock - reusable seal

Simple permanent padlock with a height of only 30mm. Once locked, it can only be reopened by destroying the lock. Preferred material for printing is PETG, but PLA works too. 

Simple assembly. Superglue can be used to make a padlock much sturdier and harder to bypass. To reuse, snip the shackle, turn 90 degrees, which unlocks the lock. You can then reuse it with a new shackle. 

When printed with PETG and glued, it is actually hard to open without tools. Despite that it is not meant as any kind of protection or prevention. It is mostly just a seal.