This Gizmo/Toolset will generate a Voronoi using only expression nodes. I made this so people can use Voronoi maps on Nuke Indie/Non-commercial without Blinkscript.
Create water droplet on lens.
The X-Rite ColorChecker Classic 2005 - 2014 - GretagMacbeth
With this Gizmo you will be able to create lightning and electricity effects. Electric arcs will be procedurally created between two points.