Need to start the process now and not wait till later.
I had to take the bottle and pacifers from DD and DS while DH was out of town for work because I know he would have given in to the kids.
If you have more than one pacifer, start having problems (cutting them works great) with one of them each week to week and a half. Explain that they are broken and tell him that you will not be buying any replacements. Let him see you put them in the trash can.
If he is using them during the day start hiding them and have them only appear when he is ready to go to sleep. Help search the house looking for them.
When you are down to 2 start not finding them during sleep times. If he is still taking naps try this one first and only have the pacifer available at night.
Once you are down to 1 start not finding it at night.
If he starts the thumb sucking there is an over the counter product for nail biting that my friend used for her son that worked great. Pretty sure she got it at
Walmart in the finger nail polish area and name is something like No Bite.
Sometimes things are harder on the parents than it is on the child.
Key is to remain firm and not give in.
I told DH that these things are just the pratice quizzes to prepare you for the real tests to come.
Good luck!