I have a 15 months old who won't stop putting toys in his mouth. He's been doing it since the day he started with me at 12 months. I've done everything I can think of and the boy will not stop putting things in his mouth. It's driving me a little crazy! I've followed him closely for days at a time reminding him. I've taking away every toy that has gone in his mouth. I've giving my disaproving face... my disaproving voice. I'm out of ideas... and this just may be part of the impatient place i'm in today... but it's really driving me crazy.