I'd rather see a fingerprint scan done to each and every voter which will be instantly matched with the database to see if said voter is registered, is voting in the correct state and also, if the voter has already voted. I'm sure we have the technology to do that. They already require my damn print for a drivers license, so I'm not giving up much.

Ink would work but some will take it to court as an invasion of privacy or some such shit. I would hate for people like BLM to harass me or even your own relatives on who I voted for when they see my purple finger. Or even harass you for not voting.