Hello nasyuhada, accessories are available only when order size US$50 or over, if you buy Masquerade Masks only (about 3-5 days preparation time) & use Premium Express shipping (3-6 days shipping time), they probably can reach you before 10th Dec. n_n
*All shipping information (including methods, cost & estimated delivered date) will be shown in order page, before payment; you can pay extra cost to upgrade shipping method there.
*Please remember to mark down the date (you need it) in the order form when you order it. :)