I can’t really remember if there were any parameters for this or if it was completely wide open. The materials used were scrap metal found in and around the studio, a branch, rope, and 16 gauge tie wire.
I welded the larger pieces of metal that make up the base, frame, and top together. I then strung the tie wire in an expanding circular pattern around the top of the piece. Hung from the top and completely encircled with the rope is a fairly thick and straight branch. The last part is made up of many individually cut strands of tie wire which were then hung from the web-like concentric wire on the top.