For what would you use these jars?

I go through a fair amount of this particular simple furikake: https://www.amazon.com/dp/B09FJCBG8J

It comes in a smallish (~four inches tall with lid) but heavy seeming glass jar with a plastic lid that has a flip-top and a smaller spout for sprinkle-pouring. I have accumulated eleven of the jars and there will be more. It seems like there ought to be a good second life for them, but I haven't come up with anything yet. How would you use them?

I have shaken the heck out of vinegar/oil dressing and used one as a cruet, it's sort of fine but the lid isn't perfectly water-tight.
I'd like to save seeds in them and then pour them down a row when planting but they're not air-tight and all my seeds go into canning jars now to avoid rotting.

For collecting small nuts and bolts of different sizes?

Beaders would use them for different bead colours.

Bit large for most spices, but I store my home dried herbs in the fridge, and these jars would do that well. (Humidity is *always* high, so "dried" doesn't stay dried very well...)

I'd put tea herbs in them, but honestly, I'd seal the flip top, those are usually air leaks.
Parmesan cheese!

Herbs.  My own mix of 5 spices for Chinese.  Screw driver bits for my drill.

My cat says "Kitty treats!"

I would use the jars for buttons and pins.

A stack of old silver dollars might fit in there quite nicely.

Or Franklin/Kennedy halves, whichever.

Anne Miller wrote:I would use the jars for buttons and pins.

Particularly if you wanted to sort the buttons by colour, size, or style!

Some of the pill bottle ideas on this thread may be useful too: https://permies.com/t/269808/permaculture-upcycling/Pill-bottle-reuse

Herbed salts would go nicely in them.

I'd store my saved seeds from the garden in them!

Seeds for planting. Fancy salts. Portable seeds for eating shake into mouth containers.

Gary Numan wrote:A stack of old silver dollars might fit in there quite nicely.

Or Franklin/Kennedy halves, whichever.

I inherited my mothers coin collections.  Pennies, nickles, dimes, all in prescription bottles.  The prescription bottles were what I was interested in.

So I could see what medications she had been taking.

I sold all the silver years ago when silver was at it peak.

I really dont have much use for the pennies, nickles and dimes that were not silver.

Yes, those bottles would be handy for silver.

I would ferment veggies in it.

Since it's likely not airtight it would release gas during fermentation,  and the flip top would allow pouring off the fermented juices into cooking magic while retaining the solids in the jar for snitching on while you cook.

I would use those for small fasteners, or dried herbs (similar to original use), office supplies, or small collected objects to keep them together and visible.
Visible is a big deal, since tins and boxes require accurate labelling or opening to know the contents. Some stuff is just nice to look at, jars keep them clean.
On the other hand, blocking light will prevent fading or deterioration of contents, such as tea, spices, etc... so clear glass is not great unless kept in a closed cabinet or drawer, then you can have it both ways!
The flip-top lid with smaller spout is nice for stuff that you want just one, a few, or a small amount of, opposed to the wide mouth of the jar.
Would be ideal for control when shaking out some herbs directly into a recipe, or dispensing something round such as beads, or seeds, or ball bearings.
As a display for something like a sea-glass collection, or "really nice rocks", or bottle caps, whatever... you'd get to see most/all of the stuff, shake it around a bit to see more.
The other nice feature which you alluded to, is that you already have almost a dozen, and you seem to like the source, so there could be plenty more!
Multiples, with uniform size and appearance, lend themselves to creating a system or a repeating design. A shelf, drawer, toolbox, or case that fits some multiple of units could be an efficient way to store what you have. Even just lined up on a windowsill or your desk, the jars would have a neat appearance.

As a serial container hoarder myself, I sometimes choose products just because I like the container for now (works well, or fits my cabinet/fridge) or for later (all of the reasons above) and stick with a product. Occasionally, there's a container that I like, but for a product that I don't use, and will try to find them in the wild or ask a friend for their containers. Yep, that's a thing.

My brain said - they look mighty handy as containers for small balls of wool, for stranded colour knitting patterns, or for replacement warp threads, suitable weighted with coins, washers etc. Or kumihimo threads.
What about filling with water, adding food colouring.  If there's a sunny window sill available, then use the coloured water to solar dye a small quantity of fleece or yarn, add a dash of citric acid or vinegar when pre-soaking the fibre (protein)  It makes a nice experiment, regardless of the result. Plenty of info available on the web.