Godparents

Ok ladies!..I really need some help..my husband and I are 11 weeks pregnant and we have decided that we want to ask his step sister and her husband to be the godparents.. We plan on asking them on December 20th when we have Christmas with them...I really want to do it in a creative way but no clue what to do..can I get some ideas from you awesome ladies 😊 it would be great help!!! Thanks in advance! 😘