You can obtain a godparents certificate for baptism from the church where the baptism will take place. Contact the church office or the priest to request the certificate.
You can obtain a christening certificate for godparents from the church where the christening took place.
to be a godparent
You cannot change your Godparents.
It depends on the religion in question, but in Catholicism the godparents are the witnesses to baptism and you can't retrospectively change who witnessed something.
parents, godparents, friends, family and religious community
You can, but usually the Godparents and relatives give gifts at baptisms.
The Godparents promise at Baptism to assist the parents in raising a child in the Catholic faith.
Godparents are there simply to reinforce the teachings of the parents and their promise to bring up the child in the way of Christ. The godparents are like teachers, supporting the parents in what they do, but the real task of bringing children to Christ rests with the parents.
no yes
You renew the baptismal promises made by your Godparents for you at Baptism. You are, basically, 'confirming' those promises and your own desire to be a Catholic.
During the Baptism ceremony, godparents are asked to commit to helping the parents live out their faith responsibilities to their children. Godparents, then, are very special in the life of their godchild. They are people whom you choose with great care, for they will be examples and role models for years to come. To help parents make wise choices for the privilege of being godparents, the Catholic Church has specific requirements.
The baptism will be in the church records where the baptism was done.