These are not the jawbreakers I remember from my youth

As in, when I was a youth the jawbreakers could actually be placed in between the jaws! However, this confection was the odds-on favorite when they stopped to get candy, and nobody enjoyed it with more gusto than Olaf.
These do seem to have a couple of natural advantages: you can't actually get enough of them into your mouth to actually eat them, and people on the bus are happy to give you plenty of room.