Just added the award winning physical modelling object to the community library. It is an implementation of a clamped bar, adapted from a concept published in this book.
The object bar can either be hit with a hammer (trig, velo) or used as a resonator for an audio signal (i1). The pickup along the bar can be chosen (offset) and physical parameters can be adjusted (mu, decay), acting similar to a low-pass filter and reverb. The "wood" attribute changes the sound from a metallic to wooden. This attribute scales approximately linear with the CPU requirement.
It may still be a bit unstable for certain input parameter combinations or abrupt paramter changes, so keep a finger on the decay parameter to tame the system once it explodes. I will soon try to further limit the parameter ranges.