I think the Easter Billy thing may have been a fund raiser for the Save the Bilby Fund, though I’m not sure. Did some work with them in Charleville some time back, as part of a student field trip looking at design concepts for what eventually became the Bilby Experience. Great people.
From what I can remember they’ve had good success in rebuilding the bilby population.
This is known as optical alignment. It’s very common in font design.