It has never come up here that a child would bring their own teething toy. But I don't allow any toys from home, so I'm sure that's why. I prefer to buy my own things that they can use and when they are done, I toss them.

On the necklace side, nope, not here. I had one child once who had a "teething necklace" made from some sort of wood beads. I just kept taking it off and putting it in his coat pocket. I also had a 2yo girl with a chain with charms on it. One of the charms was a playboy bunny...

I have since put it in my parent handbook, "I can't believe that I have to write this down..." So no, nothing around the neck. Why take the chance?