Physically-Modelled Drum is a simple physically-modelled (rectangular) drum VSTi.
The controls correspond to the physical parameters of the drum; Stiffness is the stiffness of the membrane, Initial Displacement is how much the membrane is moved initially, Mass is the mass of the membrane, Viscosity is the friction of the air (set it to 0 for a continuous sound), and Output From is the specific node in the 2d grid from where the output is read from.
This plugin uses a simplistic damped mass-spring technique to simulate a physical membrane. For more information, see www2.hku.nl/~cees2/drums. The plugin uses a 5x5 network of nodes (with the outside nodes fixed).