maybe one could die-cut sheets containing an array of cards that you first print onto and then are easily separated by hand and aligned with some sort of pegs.

maybe one could die-cut sheets containing an array of cards that you first print onto and then are easily separated by hand and aligned with some sort of pegs. I once bought a type of printer paper to make business cards that comes pre scored/cut so you print it normally but then the cards come apart with a gentle pull.