We have just released Newtonian Follower for Lightwave, free for single seat users, along with several other plugins for Lightwave.
With Newtonian Follower, you can link one object to another and have the sibling react with Newtonian physics, which can be great in bone chains for creating secondary motion in a character rig.
Also released for free is a horizontal slider custom object plugin that visualizes a value between 0-1 in a way similar to a horizontal scroll bar or slider control.
http://www.squirreldome.com/Newtonian.htm