Wrap 24 Christmas books you already own. Kids get to pick which one is read that day. Stack under kids tree in bedroom. Half the fun of presents is unwrapping them. What a fun tradition.
collect sand or stones from trips and save them in ornaments. Really cute with a whole tree from places you've been.
Saw off a piece of the Christmas tree each year to make an ornament
Christmas door "wreath" or wall decor: Goodwill frame, painted with Christmas bells and sparkle ribbon added.