C.L.
I am Lutheran, but I have a son going through Confirmation and I am a Confirmation mentor. How about an engraved frame that you can put a photo in for her special day as a gift? You could have her name, date, name of church, etc. or whatever you choose on the frame. Whether you have a party is very personal and individual. We had a huge open house at our home when I was confirmed many years ago. For our son next year we will probably just go out to eat or have a small party at home. I plan to invite grandparents and godparents. If we do have some sort of small party at our house then I might include some of his fellow Confirmation students and his adult mentor. As for what she should wear I would consult the church. At our church they just need to wear nice clothes, nothing particular. The boys often wear ties and dress pants and the girls wear skirts or dress pants. Congratulations.