I know we do these reasonably often but this is what I got to thinking about last night instead of sleeping so I thought I'd share. What if you had 13 children and named them using these initials? Genders are up to you or you can name a boy and a girl for each set of initials, whatever you want to do really.
D?: A B
D?: C D
D?: E F
D?: G H
D?: I J
D?: K L
D?: M N
D?: O P
D?: Q R
D?: S T
D?: U V
D?: W X
D?: Y Z