This is the kind of balloon u need
Hold the balloon on the tip of the pump
Pump the balloon until there's only a tiny bit uninflated.
Tie the knot
Make and "s" shape.
Twist in the middle.
Make a "c" shape.
Twist in middle.
Make another "c" shape.
Twist in the middle again.
And this should be your end result :)
- Balloon pump