It might be you give it back to him in a special way, so anyone else who gives it to him needs to do the same.

Other than that, I don't know.  Still trying to work out why on earth my 14 month old only wants Daddy when she is tired! lol

This is just my opinion ok......

I would take the bunny away all together. It only makes life harder for you when your child has an attachment to an object like a blankie or teddy. its nice to have a teddy / bunny to go to bed with but thwn they have to have it everytime and the whole time it becomes like an obsession.

You could try explaining to him that bunny is gone maybe..

if u dont want to take the bunny away then thats fine also, maybe get ur partner to make it fun when he gives it to him, like he could talk for the bunny (like a puppet) or play peekaboo with it with your son?

good luck either way

xoxox