"Merry Christmas with all the trimmings" is a phrase that is commonly used during the festive season. It is a warm greeting that sends well wishes for the holiday season. However, if you wish to change the phrase and add a touch of uniqueness to your greetings, there are various alternatives. Some can include "Happy Holidays with all the fixings," "Seasons Greetings with all the bells and whistles," "A Joyful Yuletide with all the embellishments," or "A Festive Noel with all the ornamentations." These variations help to add a personal touch to your holiday greetings. So, feel free to use these synonyms and make your holiday season even more special!