In our parish the child is baptized in regular clothes if by pouring, or naked if by immersion (the choice is the parents’ to make). When the family & sponsors approach the font, the godmother carries the baptismal garment (gown or suit) the parents have chosen for their child. When the baby has been baptized, the garment is presented to him/her at the time the words “See in this white garment…” are spoken. The child is then taken aside to be dressed in the garment then brought back for the presentation of the baptismal candle and the Ephpheta rite. If the child is older and the family has opted not to use their own white garment, the child is dressed in an alb at this time.
I don’t understand the need for a bib or anything else if the child is already dressed in a white garment – the rite certainly doesn’t suggest ignoring the white garment the child is wearing.