This is a tensegrity stand. The structure is supported by a single string in the center.

How to Make This Tensegrity Stand:

1. First, tie a knot in the string and pass it through the square base.
2. There are two arms — let's call them Arm A and Arm B.
   Pass the string through the lower hole of Arm A, then tie a knot and pass it through the lower hole of Arm B.
3. Next, thread the string through the upper hole of Arm A, pull the string tight, and tie a knot to keep it in tension.
   After that, pass the string through the upper hole of Arm B and tie another knot.
4. Finally, assemble the base and insert Arm B into its slot.
   At this point, using something like a purge line to pin or secure it will help keep everything stable.