Hey, check out the Saints Market Catholic Store link on this website. There are some children’s Advent books on there that you might enjoy! Also, I remember when I was a child, we got purple and pink construction paper and made cut into strips and made rings out of the strips and enterlocked them – we made enough for 1 for every day in Advent and then cut one off each day of Advent. If I remember correctly, a couple of times, we wrapped the chain around the tree. (However, being part German, we often didn’t get the tree until Christmas Eve and decorated it then as per German tradition.)
Let me know if you come up with any Advent Ideas of your own so I can try them out!
p.s. I have a 2 yr. old Sofia (spelled differently)!