Help Make-A-Wish Colorado grant wishes by writing letters to Santa! Now through December 24th, Macy’s will donate $1 to Make-A-Wish for each letter written to Santa as part of its Believe! campaign. Write and submit your letter online or drop it off in the red Believe mailbox at your local Macy’s. Macy’s will donate up to $1 million, which will help spread joy for children battling critical illnesses.