Unfortunately it is very difficult to retrieve items of personalty from an ex-spouse. Did your divorce decree provide for him to return your items of personalty? You could always make up a list of items that you are seeking and give that to your ex to see what his response is to that request. Usually the value of the personalty that you are seeking is not worth the cost of hiring a lawyer and pursuing the return of the items through a court proceeding.
Unfortunately, unless the divorce decree or property settlement agreement specifically provides that you are to receive these personal property items, there is nothing you can do to compel him to give you the items. HOWEVER, if the divorce decree and order provides that you were supposed to receive the items, or the two of you have a written marital settlement agreement that provides so, you can petition the court to enforce the terms of the decree or agreement. If you are unsure, you should consult an attorney and provide all documents relating to your divorce so he or she can determine whether there is a divorce decree or settlement agreement that sets forth the terms for division of marital property.