You will need:
1 undecorated Christmas wreath
1 small nativity set with removable pieces
1 star ornament
1 spool of coordinating ribbon
A hot glue gun
Start by wrapping the ribbon around the wreath, securing in place occasionally with hot glue.
Arrange the nativity pieces on the wreath. When you like the arrangement, glue the figures in place with the hot glue gun. You may have to use a lot of glue. :)
Glue the star ornament on the top.
Hang and enjoy!