Here's a clip from a talk I gave for the @ScienceAfterDarkSLO. (I really do enjoy working with undergraduates in the lab...). You can see another clip from this talk in an earlier post.
In addition to the stir plate and stir bar, I also show the micro centrifuge in the cartoon. Here are some centrifuge cartoons.
The character on the right with the striped shirt appears in another of my centrifuge-related cartoon.