A hexagonal grid that you can distort to create radiolarian-type shapes.
The default transformation is 'rotation (cursor is green)'. Click on a point to cause the hexagon points to rotate about it. Type 'p' to switch polarity of the rotation.
Type 'T' (capital T) to change the type of force from rotation to source/sink (the cursor turns blue to indicate this).
Press 'C' to clear the grid and start over.
To tweak this sketch, first download it.
Make your updates, then upload your tweak!