I hope your family is as excited about advent as ours is!! I'm starting to compile some activities for us, and thought you all might enjoy some as well:
Making an advent wreath & prayers
Longer advent prayers for older children
Catholic Mom's 2010 Advent Chain - which my little people just love doing every year!
Advent Wreath coloring page - We use a coloring page for the children every year :o) They color instead of light the candles as we go.
I hope your family is preparing for advent and even more anticipating the celebration of the birth of our Lord!
Editting to add a wonderful novena & craft idea for The Immaculate Conception ~ from In the Heart of my Home blog. I'm thrilled to participate!