1982Art has released Gloria, a freeware 2 band parametric equalizer VST plugin for Windows.
Gloria is an equalizer which replicate the shape of bells. (It consists of two overlapping bells.)
It also has a switch on/off, another to switch between mono and stereo, another one to reverse the polarity and finally, one to change the saturation mode between A and B.
A mode contains both odd and harmonics, the last one being more prominent. In B mode it has the same amount of harmonics, only increasing the odds. In any case, none of the two modes have an excessive saturation. Mode A is -62 THD (total harmonic distortion) and the B Mode-41.
More info: Gloria equalizer VST