A year ago I made a vst synthesizer which I used for creating weird, and not so weird sounds. It's got a full manual, and it's a bit heavy on the cpu. However, the Signal Flow goes deep and, although the sound is not conventional, some real cool sounds can be extracted, but with a lot of patience.
I want to share this with you, now.
The dll file can be used in a vst host, the exe file can be used on the spot. Using this instrument is free. If you happen to own a MIDI keyboard and/or Controller-- it's more fun, hook it up and go.fz-synth