Itty sine wave:
[image|http://www.mr-anderson.net/images/sine-wave.png||||]

Bigger sine wave:
[image|http://www.mr-anderson.net/images/sine-wave2.png||||]

Um... eyes:
[image|http://www.mr-anderson.net/images/um-eyes.png||||]

Nearly circular orbit:
[image|http://www.mr-anderson.net/images/circular.png||||]

Atom:
[image|http://www.mr-anderson.net/images/atom.png||||]

Trapped:
[image|http://www.mr-anderson.net/images/trapped.png||||]

They were so completely stuck after the last one that I couldn't shake them loose at all. I moved the attractor away and discovered that the motes were now completely motionless. :-)

[image|http://www.mr-anderson.net/images/gravity-spot.png||||]