Here are some experimental Faust (http://faust.grame.fr/) effects:
duck_reverb.dsp - ducking reverberator, freeverb faust implementation borrow from Guitarix(http://guitarix.sourceforge.net/).
freeverb3.dsp - !Reverberator not stable! Faust implementation of freeverb3 (http://freeverb3vst.sourceforge.jp/doc/Progenitor.jpg).
parametric_pitch_shifter.dsp - here is pitch-shifter, where shifting, controled by combination of signals, from amplitude follower and sine generator, what are provide really sophisticated psicho sounds.
rotary_speakers.dsp - As is.
shimmer.dsp - !Reverberator not stable! The allpass tank reverberator, combined with parametric pitch-shifter.