A rope bracelet - reminds me of making friendship bracelets back in the day. My right second toe used to go numb because I'd hook the end of the bracelet over it, and then knot embroidery floss for HOURS.
Making an Advent Calender with 24 acts of kindness. Instead of more gifts for your children, this puts the focus on the true meaning of Christmas! - you could go a lot of directions with this little chalkboard / clothespin / paper bag Advent calendar.