I am going through the get my toys out of your mouth syndrome with a 14 month old right now. I have a play yard I can use to section off an area and I put some of the baby toys in there - the kind that are easily washed and meant for chewing. Those are the only ones that can go in the mouth and they are washed daily. If the child "forgets" after the first warning they go in that area to play. I get that being oral is normal but so is having toys to play with that are not slobbery so in fairness to the older kids the younger one has to be limited. It also saves me a ton of washing.