I totally disagree. I think we make way too much of what 'might' hurt our children and sacrafice their happiness in the hopes that what we do now will benefit them later and that philosophy is simply not true. His teeth will still grow... and he'll be fine. If he likes his rabbit give it to him. Why would you want him to lay in there and cry? Does that make you or him feel good? No. If the bunny's ear being in his mouth bugs you then before you go to bed gently take it out. I just can't see making him suffer for really no reason. He's sleeping by himself - which has to be a little on the scary side to begin with. We act like these kids are grown up and have to be so perfect - well they are perfect - even if it doesn't seem so to the rest of the world. Do what makes your child happy and try to tune the rest out!!!