Here's a rhyming, non-literal version:

Is that a mouse?
No, no, my mouth!
Is that a steer?
No, no my ear!
Is that a rose?
No, no, my nose!
Is that bread?
No, no, my head!
Knock, knock,
Open up and let me in,
We want to be good friends.

Thanks and Acknowledgements

Translated by Monique Palomares.

Vielen Dank!