Triggered by the development/port of the Pink Trombone ‘Vocal Tract’ module and my earlier experiences with Developer XOXOS VST plugins like Fauna and Oscine Tract.
This VST plugin developer created many creative and unique (and free) oddballs.
Anyway…
Some inspirational module ideas from the world of (free) VST plugins:
XOXOS https://xoxos.net/vst/