Kinematic Lab has released Custom Controls for 3ds Max, a new that tool helps riggers to create custom shapes for animation controllers. In addition to the built-in presets, new splines can be created and added to the library. You can then replace any existing object with these custom shapes, change their size, orientation, and colours. The substitution only replaces the base object, so everything else including modifiers, animation controllers, and more remains untouched. The plugin costs €20 from the Kinematic Labs website.