In the future flesh will become as clay,
to be manipulated as people see fit. Within the next several decades writing genetic code will be as easy as writing computer code today. That code will then be transferred to nano manipulators where it will be assembled into actual genes and chromosomes. Isn't the future exciting!
Child: "Daddy, I want a unicorn!"
Father: "Sure, lets go down to the Genes R Us store. Although, we'd have a lot more room if you got a yard gnome."