E.R.
I personally have not had this problem, but my nephew Ethan will be 3 in November and his parents just within the last couple of months have finally gotten him to give up his pacifier (a batu, as he calls it). They tried everything, from hiding it, throwing it away several times-and him trying to dig it out of the trash can, losing it-and always end up giving it back to him. Within the last 6 months they got a lab puppy, named Bingo-how appropriate! The only thing that has finally worked was telling Ethan that "Bingo ate his batu"- somehow this has stuck with him and he has learned to accept that he can't have it back now. Although he has not had a pacifier since this has happened. He doesn't nap well in the afternoons since being without it, however he IS sleeping all night in his own bed. The permanence of the dog eating it has finally stuck! This was a battle for them for almost a year. So keep trying, I hope this can help you, good luck!