I loved making a "Mailboxes" on Valentines Day when I was growing up.
My kids are too small to make one so I decided to make them and have them filled with treats and stuff on Valentines Day.
I bought the mailboxes at Hobby Lobby, they are made out of cardboard.
I went to a local specialty stationary store to by the vintage'y looking wrapping paper to mod podge on the outside. I mod podged the ends and the flags in red tissue paper, and then just added an initial for each child on the front. Simple!