@old_angry_queer aw but silicone end-stoppers are fun! :D
but you're right
last time i pulled one of those out, it was in there real snug. when it finally came loose the rest of the tube snapped back from the tension i had inadvertently applied to it and I flung a half dozen chips all over the room.
I would have tried to squeeze a small amount of toiled paper or cotton into a ball that seals the tube.
But @old_angry_queer's suggestion is: Neat!
@old_angry_queer legend, thank you so much!!
tip in return: the best way to cut these is with a good bread knife (serrated, ideally thin)
@old_angry_queer
I used to use drawing pins.
At one point the workshop had a whole bunch of weird small batteries shaped like baby spam tins in similar tubes. Eyebrows raised when some bright spark put a multimeter across one of said packages and measured about 250V.