Some decades ago, my first year college chemistry course included a lab that exercised a simple example of this. Make your own, much finer dropper, and then pr

Some decades ago, my first year college chemistry course included a lab that exercised a simple example of this. Make your own, much finer dropper, and then properly calibrate it. I mention this, because the calibration was an essential aspect. Each result, of itself, was to some degree a one-off. You weren't getting production replication to set high degree of precision; there was variability. You then measured/calibrated how your individual unit performed. I've seen that a lot, in subsequent life. There may be variability in whatever device or process; if you learn what it is and understand it, you can then use the device or process precisely in light of that knowledge. But, a lot of people don't know how to do this. Not just with glassware. With accounting. Tools. Programming. Scientific formulae (simplest example of this: people who could never generalize, but instead tried to memorize all the "plug-and-chug" instances for all the specific test problems they would be presented). Etc. So, aside from having the resulting glassware, I think making it -- and calibrating it -- is a useful lesson, in itself.