Youtube user Loopop has an excellent walkthrough video showing eleven tips and tricks you you can apply to your synths.
In the video he uses the Arturia MicroBrute to demonstrate the tips and tricks, which are:
- HPF Bass Boost
- Add Noise
- Noise Sidechain
- DIY Brute Factor
- Tuning Resonance
- Chromatic Resonance
- Playing the LFO
Perhaps the most impressive trick is using a cheap transistor radio to add a noise oscillator. This of course requires your synth to have an audio input, which the MicroBrute has.
Similarly, there’s no reason why you couldn’t apply these ideas to software synths.