A flat overhand bend in the elastic cord is what I recommend: https://www.animatedknots.com/flat-overhand-bend-knot
Justification:
Simple, not bulky, reasonably secure against shaking loose, and relatively easy to untie.
As suggested in another comment, a double figure eight could be used as well. It will be more bulky and a bit less likely to come loose.
If you’re using Sync there’s an option called “filter user”. Post dot menu / filter / user.
I can only speak to my own experience, but maybe?
Also, I lied about being American and participated in this thread anyways.
That chocolate milk comes from brown cows.
When I discovered the truth, I learned an important lesson about betrayal.
That would be a highly specific casual conversation!
Source. For research purpose.
https://en.wikipedia.org/wiki/Cox–Zucker_machine
The Internet’s Own Boy: The Story of Aaron Swartz https://www.youtube.com/watch?v=3Q6Fzbgs_Lg
Aaron created RSS, and was an early developer of Reddit. A visionary of accessible information and information technology.
Since his death, the direction the internet has gone has been in ways that he would very much be taking issue with.
There’s nothing that indicates he was coerced.
My point is that people portray a father taking a 4 year old to his death. I’m just pointing out that he wasn’t a child but an adult who chose to go on the trip.
Suleman Dawood was the youngest passenger on board. He was 19 and therefore an adult capable of making his own decisions.
https://www.cnn.com/2023/06/23/europe/titan-submersible-victims-intl/index.html
If you want to be able to trim off the ends, I suggest a double fisherman’s instead (aka the double overhand stopper) with both strands (hold them together while you tie and treat them as a single strand).
https://www.animatedknots.com/double-overhand-stopper-knot
With either knot, after you trim, you can melt the ends of the elastic cord. It will “mushroom” a bit, which will also prevent the tips from creeping into the knot and coming loose.