The plastic ones are just right for holding a nice metal pencil sharpener and shavings.
Some 9 years back, when I worked at a newspaper, and they still used film for all their photography, I used to save the film canisters, the semi-clear white ones like in postcard’s collection. They are so useful! I used them mainly for a pill bottle, but also for sewing needles and other sewing notions, jewelry, and various other little things.
Unfortunately I only have a couple left 
I love those things, they are SO handy. I miss them.
When I was doing a lot of painting with acrylics, I found film canisters are perfect for saving colors. It doesn’t dry out as fast so you can go back and fix stuff without trying to mix the color again.
My boyfriend just, as in yesterday, opened a film photography shop. Camera shop, darkroom, studio. My fingers are crossed so hard they may fall off.
Like someone else said, Altoids tins, pill bottles.
Go to a photo store and ask for some. They’ll probably have drawers full of them.
I used them to store batteries while I traveled.
If you’re a mouse, maybe!
Take a plastic film cannister and put a couple of tablespoons of vinegar in the bottom. Lay a single ply sheet of toilet paper on the top and add about a teaspoon of baking soda. Snap the lid on securely and keep upright.
Flip the cannister upside down and immediately toss it as high in the air as possible. With practice it will a’splode at the apex and look like a tiny moist firework.
For more fun flip the cannister upside down and hand it to a friend, quite a lovely grenade.
Just in case, I thnk Postcards is referring to measuring the amount of uncooked pasta and not after it’s cooked.
Confess. You were all in gifted classes, weren’t you?
When I was in High School, we used to take 35mm film canisters, cut one end off and sellotape a finger from a rubber glove over it, then load it with small balls of paper (or, in my case, plastic Soft Air Gun BBs), resulting in a short range relative of the slingshot, but with the ability to fire multiple projectiles. Best of all, they were ludicrously easy to conceal, and (if fired with only one pellet in them) could get quite a respectable range out of them. 
So? What’s that, three penne tubes? A tiny morsel of pasketti?
I hope to Jebus you have that thing labeled “Irony.”
Hmm… Let’s see…
4 posts concerning illegal (or at least illicit) smoking material.
1 post concerning turning object into a ballistic device.
1 post concerning turning object into an IED.
And, of course, there’s blondebear’s post about “superworms” and the pun at the end that seems almost unanimously a whoosh.
Yep, you got it, always wondered just exactly we were doing in those “special” classes weren’t you? 
The beauty of living in NYC is that I have B&H, Adorama, and a few other places where I can walk in and have a wide variety of film available for purchase. A bewildering variety and not just 35mm.
I got it. I adore puns. 
At a guess, a serving of spaghetti. Of course, why would you want to cook just one serving?
That’s what my life has been missing! My wife is a hobby photog, and ever since she went digital, I’ve been hunting for little containers for odd nuts and screws for the small woodworking projects I do. Best of all, they were free! I loved the Fuji cannisters – they were clear plastic (or pretty much clear) and I could see what was in 'em without opening them up.
They’re not that good for packing shots of whiskey on a hike, though. Not water-tight (or liquor-tight, as the case may be) without supplemental sealant.
I taught myself to juggle with them.