Of course, it depends on the child's last name. I'm obsessed with the flow of a name, but since you used one-syllable names to demonstrate your point, I will go with the same:
Molly Jane
Molly Belle
Molly Rue (my favorite)
Molly Blair
Molly Rae
Molly Rain
Molly Eve
Molly Grace
Molly Hope
Molly Lane
Molly Love
Molly Shay
Molly Sue
Molly Wren