Squeeze spoon

I often make popcorn (fiber!), got tired of estimating, so I carefully measured ingredients.... My popcorn machine fills its bowl using 140 grams of popcorn, which requires 10 ml or 2 teaspoons of oil. Rather than get a spoon dirty with the oil, this squeeze bottle can pretty accurately do the job. There are similar bottles for sale if you look around.

It will dispense one Tablespoon, and the three teaspoons levels are marked. Included is a file for a lid to keep it clean, and a file for a silicone gasket mold if you want to mold the little gasket... but mine is air-tight enough without it.

This soft bottle is cheap and common. Squeeze bottles can be found everywhere... for condiments.. bathroom / cosmetic things... This one's threads have an outside diameter of around 37mm. I know from experience threads on plastic bottles are not at all standardized, but caps are fairly easy to make, or perhaps modified in this case, using a design tool like Blender.

I resin-printed this one be