Processing Blobs Code
Here's the source code for the Processing exercise we tediously typed in last week. I encourage you to experiment with the various parameters, try to break things, change colors, etc. One good thing to try might be to create a "tail" of some sort to the Blobs. You'll want to think about drawing additional shapes "behind" the main blob, perhaps with a different transparency level. (Check the reference manual for ways of manipulating the alpha level of the stroke.)
You'll need both these files — just add them each to your Processing project, so there'll be two tabs in the IDE.