Maurizio Giri, co-author of "Electronic Music and Sound Design Theory and Practice with Max/MSP", has quite a few Max for Live devices on his site Amazing Noises. Including the "Granular Stereo Faker", a granular delay with different delays between right and left channel creating a stereo effect. It can liven up static mono sounds in Live 8/Max 5 or Live 9/Max 6.
Check out the video for the "Granular Stereo Faker":
This way for heaps more Max for Live devices & tips.