Tweak the Sibset

The first poster creates a sibling set of a brother and sister. The next poster swaps out 1 of the 4 names.

EXAMPLE:

Poster 1: [name_u]Noah[/name_u] [name_m]Liam[/name_m] & [name_f]Emma[/name_f] [name_f]Olivia[/name_f]
Poster 2: [name_u]Mason[/name_u] [name_m]Liam[/name_m] & [name_f]Emma[/name_f] [name_f]Olivia[/name_f]
Poster 3: [name_u]Mason[/name_u] [name_m]Liam[/name_m] & [name_f]Emma[/name_f] [name_f]Sophia[/name_f]

FIRST SIBSET:

[name_m]Frederick[/name_m] [name_m]Atticus[/name_m] & [name_f]Ophelia[/name_f] [name_f]Rosamund[/name_f]

[name_m]Frederick[/name_m] [name_m]Amos[/name_m] & [name_f]Ophelia[/name_f] [name_f]Rosamund[/name_f]

[name_m]Nathaniel[/name_m] [name_m]Amos[/name_m] & [name_f]Ophelia[/name_f] [name_f]Rosamund[/name_f]

[name_m]Atticus[/name_m] [name_m]Amos[/name_m] & [name_f]Ophelia[/name_f] [name_f]Rosamund[/name_f]

[name_m]Theodore[/name_m] [name_m]Amos[/name_m] and [name_f]Ophelia[/name_f] [name_f]Rosamund[/name_f]

[name_m]Theodore[/name_m] [name_m]Amos[/name_m] & [name_f]Ophelia[/name_f] [name_u]Seren[/name_u]

[name_m]Theodore[/name_m] [name_m]Jack[/name_m] & [name_f]Ophelia[/name_f] [name_u]Seren[/name_u]

[name_m]Theodore[/name_m] [name_m]Jack[/name_m] & [name_f]Ophelia[/name_f] [name_f]Serenity[/name_f]

[name_m]Theodore[/name_m] [name_m]Roderick[/name_m] & [name_f]Ophelia[/name_f] [name_f]Serenity[/name_f]

[name_m]Theodore[/name_m] [name_m]Roderick[/name_m] and [name_f]Ophelia[/name_f] [name_f]Fay[/name_f]

[name_m]Theodore[/name_m] [name_m]Roderick[/name_m] & [name_f]Penelope[/name_f] [name_f]Fay[/name_f]

[name_m]Theodore[/name_m] [name_m]Knight[/name_m] & [name_f]Penelope[/name_f] [name_f]Fay[/name_f]

[name_m]Theodore[/name_m] [name_m]Knight[/name_m] & [name_f]Florence[/name_f] [name_f]Fay[/name_f]

[name_m]Theodore[/name_m] [name_m]Knight[/name_m] & [name_f]Florence[/name_f] [name_f]Oriana[/name_f]

[name_m]Theodore[/name_m] [name_m]Knight[/name_m] & [name_f]Florence[/name_f] [name_f]Posey[/name_f]

[name_m]Theodore[/name_m] [name_m]Knight[/name_m] & [name_f]Florence[/name_f] [name_f]Ivy[/name_f]

[name_m]Theodore[/name_m] [name_m]Rupert[/name_m] & [name_f]Florence[/name_f] [name_f]Ivy[/name_f]

[name_m]Theodore[/name_m] [name_m]Rupert[/name_m] & [name_f]Florence[/name_f] [name_f]Maeve[/name_f]

[name_m]Theodore[/name_m] [name_m]Rupert[/name_m] & [name_f]Florence[/name_f] [name_f]Amelia[/name_f]

[name_m]Theodore[/name_m] [name_m]Maxwell[/name_m] & [name_f]Florence[/name_f] [name_f]Amelia[/name_f]