If you want to ensure your order will be received by the 25th then you'll need to use US Express Mail. Service is overnight to most destinations, and the Post office will even deliver on 25th for Express. Cost for this is $25. If you are interested in this please contact me directly at email@example.com. After you complete your order, please let me know that you need it fast! And you will also need to send an additional Paypal payment of $18 to firstname.lastname@example.org to cover the Express Mail cost. Last day to order and receive by the 25th is Friday December 23rd.