MauSynth is a polyphonic analog-modeling subtractive synthesizer VST plugin by Pekka Kauppila. You can create all sorts of awesome sounds with it. MauSynth features are:
Zero-delay feedback filter
32 voice polyphony
Friendly user interface with two optional skins
The MauSynth steel skin is made by gamecat666. MauSynth black skin is made by ENV1.
MauSynth is donationware. You can freely download and use it with no charge. But if you really enjoy the plugin you can buy me a beer via PayPal (1$ - 25$ depending on how nice beer you want to pour down my throat).