You don’t need fake ballots to fake elections.
You can fake everything else. Control the options, dismiss candidates since you control the law and the election committee, control the media, make your choices look good, and make the others look bad. You can fake the popular will and make the people think that they want somebody you’ve chosen. You can use religion and deceit to guide the population exactly where you want them to go.
It’s not just the elections that are fake, but any candidates that participate rather than revolt, since no matter what they say, they are betraying the revolution.
You cannot achieve revolutionary goals through political means.