[mothered]

Old school moron here, but some scotch tape and a coffee mug, or some other object, may be able to get you a finger print.

This does work, but It's not always the case.

Some manufacturers use "anti-spoofing" fingerprint techniques, such as looking for perspiration. This helps Identify a real finger and not your above-mentioned entities. Having said that, most don't use anti-spoofing, hence you can unlock a phone as follows.

* Fingerprint on masking tape.
* Fingerprint on silicon gel (mould).
* Photocopy of a fingerprint.
* Finger of a "corpse".

All these have been tried, tested and succeeded. Remember, It's matching  a "partial" stored Image, not the full finger fingerprint.

Would love to try the masking tape method.

Aside from the finger of the corpse (unless anyone wishes to donate their finger), I've tried and succeeded with the above.

It was an arduous task with some tests- a lot did prompt for a numeric password after ex-amount of Invalid fingerprint authentication attempts, and lockout policies also took effect.