A Hairy Situation

This is really an old lock of hair.

From my grandfather's head it did bear.

But I don't have a clue.

With what I should do.

Should I clone? Or is that a nightmare?

Fish Doorbell?

 They're not just a fun seafood dish,

They're animals with a strong wish.

To get through the lock,

They cannot just knock.

That's why there's this doorbell for fish.

https://visdeurbel.nl/en/the-fish-doorbell/