“Boxing Day” is the Synaxis of the Most Holy Mother of God!
https://www.oca.org/saints/lives/2023/12/26/103648-synaxis-of-the-most-holy-mother-of-god
Troparion
O Most Pure Mother of God, your holy Synaxis is adorned with many diverse splendors; / and gifts are brought to you by many peoples of the world, O Lady Theotokos. / In your mercy, loosen the bonds of our sinfulness, and save our souls.
Kontakion
He Who was begotten before the morning star by the Father without a mother / is incarnate of you today on earth without a father. / Therefore, a star announces the glad tidings to the Magi, / while Angels and shepherds sing of your undefiled child-bearing, O you who are full of grace.
Yes, it is appropriate to give gifts to servants and the poor on this day, in honor of the Mother of God!
Kontakion for St. Stephen’s Day:
Yesterday, the Master arrived through the flesh,
and today, the servant departs from the flesh.
Yesterday, the King was born in the flesh,
and today the servant is stoned for His sake and dies.
And we know him as the holy Protomartyr Stephen.
Mary was a sinner, just like the rest of us.