I hinted like crazy to all my family to get me one of these with my firstborn. I never got one. So with my second baby, I bought myself one just as he turned 5 months and was clawing like a kitten at feeding times. It's great! He loves turning it over in his little fingers and playing with it while he nurses. He'll chew on it for ages, and it's great for when I forget to pack a toy, I can just hand him the necklace. I've just put an order in for another...