HolySynth is the first VSTi I've built.  It's a single oscillator ADSR VSTi.  I made it as a joke after taking inspiration from ZynAddSubFX.  The website of ZynAddSubFX states "Please don't use this program to make music that is against God and Jesus Christ."  Though it's no longer on the website, the author specifically requested that his plug-in not be used for Heavy Metal or New Wave.  Religion + VSTi's.  A match made in Heaven?