Write your name on a 100 mL beaker using a permanent marker.
Tie a piece of string around a wooden splint.
Cut the string so that it ends slightly above the bottom of the beaker.
Apply a thin layer of Vaseline to the upper portion of the thread.
Pour the supersaturated solution into the beaker, filling it about halfway. The string should rest in the solution without touching the bottoms or sides of the beaker. Let it rest undisturbed 2 days.