All I did was remove the centres from the zeros. It doesn't look as good as the original any more, but it's a bit easier to print - especially if you make it smaller or have a less accurate printer! :)

My photos show one printed at the stock size of 2cm and one at 3cm. You can see my printer (Flashforge Adventurer 3) clearly doesn't give the most accurate prints and the top, bottom and sides all look pretty different! :) It works fine though.