'Grain' Node with added menu option to be able to select a specific mask channel (replaces the stock 'Apply only though alpha' option).
A smarter, easier to adjust version of the default Rectangle node.
Track a radial mask on UV pass
It's a standard Nuke Grain2 node, but with ability to control noise intensity in darks only.
Roto gizmo with simplified interface
This Gizmo allow you to make rotoscoping outlines easily for your breakdown.
radial rings is an expression based animator for creating radial rings. You can use it as a wipe tool or ripple effects. Hope it would come in handy.
Generate a RotoPaint node that matches your image
Gizmo to create some sort of a comic style action lines.
Grain with lookup table and halo fixing.