Above is the piece type of sisp, followed by a strand of ten and then three strands folding together (which can't be cut out of poster board like this), they were created using Stella4D. We could name the piece and combo as follows:
Cog - magenta piece - comes from the sides of the pap cells, 600 needed.
Zipper - composed of ten cogs, folded outwards and glued together at the ends to form a ring, - magenta, 60 needed.
Put convex tabs on half the equalateral triangles of the zipper in an alternating method and concave tabs on the inside triangles on the left side and concave tabs on the concave pentagons on the right side. Now "zipper" three zippers together from the inside faces of the zippers with concave folds. This will make an indented zippered triangle like twister of which 20 are needed. Put these together like they were a gad-twister. The model is now complete. Toss it in the air and swirl it before catching it.
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