>useful as a tamper detector
If anyone's actually looking for this, check out tilt and shock indicators made for fragile packages.These shock watches and tilt watchers are quite expensive. I wonder how much must be the package worth to be feasible to use this kind of protection
If it's about intrusion detection of packaged goods lentils, beans or rice are very useful [0]. Cheap but great tamper detection.
[0]: https://dys2p.com/en/2021-12-tamper-evident-protection.html