How about a $2.56 note. Then we can be amused watching the clueless morons in stores try to make change. Call it the Snowflake bill. Decorate it with clowns, Che T-shirts, gang-bangers holding glocks sideways, aiming at mooslim females with rainbow-colored vaginas on their heads. It would be the most politically correct currency in the world.
Or a $2.55 note, to represent all the combinations of 0’s and 1’s you could have in an 8-bit computer byte.