The pointe shoe post!!
This is how I sew my shoes:
I use floss instead of string because it’s stronger and won’t break as easily.
One elastic lower, so I don’t sink into the box.
One elastic higher so the shoes form fits to my arch.
Two weaker elastics cris crossed by the ankle so the heel of the shoe doesn’t fall off.
And ribbons sewn in the middle of my arch, to help lift my foot up in the shoe and help the shoe break in the place I want!