Kind of a loaded question as they can each make so many different sounds that trying to list them here would be painful. The Low pass filter for example can do anything from copping a pretty decent Mu-Tron sound, to an envelope filter sound that doesn't have the peaks of the Mutron, to a great drive circuit, to some of the craziest space sounds / pinball machine sounds if you start leaning on the resonance and use an expression pedal on the cutoff frequency. Just check out the MP3 that Adi77 posted above. SERIOUSLY CRAZY CRAP from a Low pass filter with some delay and trem. If you do a search on youtube for Moog sound clips for bass you will find more than you might think. I think the comment above is very fair - if you don't get to really know a particular Moog pedal you are probably missing out on 85% of what it can do and it's really just an expensive stomp box.