Try this voicing (how is this for being contagious?!) for a Bb7/6 chord, dissonance- it has plenty of it. I tend to delay the entrance of the last note.
4
8
7
6
X
X
Or here's a good cool Ebsusb9 chord (use as a dom7):
9
7
7
6
X
X
Or if you want to throw yourself for a loop, try this for the same chord:
4
5
6
8
X
X
I gotta hit the sack, 2:45am rolls around mighty quick!!!