I like "Rune". It's simple, easy to remember, and relatively easy to market. Also, I can imagine people actually using a cryptocurrency called "Rune" in the real world.

NO: "Your order comes to 4 Boolberries, ma'am."
YES: "Your order comes to 4 Runes, ma'am."

Also, your revulsion of "Rune" due to your subjective association of it with D&D and neckbeards says more about you than it does about the name itself.