1 Death of Inhaling Hatmaking Chemicals: So, Charon, ’ow’s the ferryin’ dead people business?
2 Charon: Not many people have real obol coins to place in the mouths of their dead any more.
3 Charon: Some people even want to use some newfangled cryptocurrency to pay their passage.
4 Death of Insanely Overpowered Fireballs: I’d have thought with coins in people’s mouths, you’d be used to bit-obols.

This comic was inspired by a comment by a reader. You know who you are - I won't shame you by revealing your name. :-)

I've linked it before, but Wikipedia's page on Charon's obol is well worth a read.