MEL scripts -
JL_proxyJoin - Combine several meshes into one, with history, while leaving the originals completely intact.
JL_poseReader - a simple utility-based pose reader.
JL_addReplaceShape - quickly add (or replace) a shape to any transform.
JL_connectSel - Connect or constrain the translate, rotate, and scale values of two objects, with one click.
JL_skinToConstraint - create and constrain joints to the smooth-skin influences of every (selected) polygon vertex.
JL_vertRivet - create and constrain joints to every (selected) vertex on a polygon.
JL_mirrorJoint - like Maya’s mirror tool, but can prevent negative joint-lengths.
JL_isolateSlider - If you’re using a basic X/Y box-slider, this script will create a series of nodes that will isolate the values of each position, allowing you to control up to 8 blendshapes.