For those people who have little experience with the trades - this is an art project, and building up your understanding of tools from this resource probably isn't a great idea.
For those people who can't get the screwdriver bits image out of their mind - I'm with you.
[0] I think it actually unteaches things as it obfuscates the point of the shape of the periodic table.
One that changes color the longer you brush so that you know you've brushed sufficiently (and not just blood-red to indicate your gums are now bleeding).
One that changes color based on where the calculus on your teeth accumulated, so you can target you brushing.
One that does the brushing for you, just keep it in your mouth for 3 minutes and rinse.
Oh lord...
This exists, although for some reason I'm not aware that it's available as part of a toothpaste. (Maybe the toothpaste foam would create false positive indications by making it seem to accumulate in places that don't actually have plaque.)