In our parish they had a basket of pictures of the confirmation candidates and asked we might write them a letter or get them a gift. I did both. Bought a little book called "Prove It! Church" and a couple of holy cards and then did a short letter I printed out using a greeting card program and put inside of the book - sort of like a dedication. I didn't know her, but just wrote about how I was a recent convert and her being confirmed at her age she was way ahead of me. So tried to be personal, despite I had not met her. Did see her at a Mass later.
Hope that helps.
At the end of the parable of the lost sheep Jesus recalled that God's love excludes no one: "So it is not the will of your Father who is in heaven that one of these little ones should perish." He affirms that he came "to give his life as a ransom for many"; this last term is not restrictive, but contrasts the whole of humanity with the unique person of the redeemer who hands himself over to save us. The Church, following the apostles, teaches that Christ died for all men without exception: "There is not, never has been, and never will be a single human being for whom Christ did not suffer."
(Catechism of the Catholic Church, 605)