Oh god why did you have to remind me of the jar video

Also a weird way to say $0.70...

Those flasks can actually be really nice compared to normal RBFs for real reasons and not just memes. They are a lot easier to e.g. pipette out of because the taper gives small volumes of liquid more height than a typical round bottom, so less material is lost as skin on the glass. Same issue with stirring; it's a lot easier to get better stirring when the liquid actually covers the stirbar. "Just use a smaller container", you say, and yes, do so if you start with a small volume. But a lot of times in organic chemistry, you need to isolate the compound from solution by evaporating the solvent. Depending on the concentration, the volume can start large and end much smaller. These flasks can help recover a larger amount of precious material.

FAAFO?

Two lab assistants, one beaker.

No flared base...

If I could go to the store and bring small mason jars with me when I needed more spices and fill them from a dispenser, use say a commercial vacuum sealer for the lid then throw them in the cupboard and refill small jars like this with a cork and reseal the jars at home I'd probably think these were a nice aesthetic. Rack hanging on the back splash with all the different spices and just refill them all when needed without wasting more and more plastic bottles or one time use grinders that we replace soon as they are empty. I understand singular people's waste is a tiny fraction of the waste created by companies... But I still feel bad any time I throw away a zip lock bag. I've gotten to the point that I just flip them inside out and rinse them out or wash them and leave them to dry so I can reuse them. Next day throw them back in a drawer sorted by usecase.

Actually I know a lab that ordered a large set of glassware from China directly from factory and erroneously received a different set of glassware. Turns out the same factory makes lab glassware and those kinky glass cocks and buttplugs to be filled with hot or cold water. What's even funnier, the senior PI genuinely had no idea wtf that is and went ahead asking colleagues - people around the globe - what they think this stuff would mean, what weird technology is that.

Before you ask - I don't know the name of the factory, but probably it's easy enough to find on aliexpress, I'm into different stuff. Buying directly from manufacturer is better than buying from local reseller IMO. The best thing for a chemist in this category is probably buying lubricant components in moderate bulk and mixing them yourself so as not to worry about shelf life and be as allergen free as possible.

If the OP question is genuine - this thing is supposed to occasionally rotate around held by the neck, so the bottom has minimal footprint thus it does not hit anything. And this is the most stable and easy to manufacture shape for that.

Colby, don’t!