Here are a few card templates I use for a Valentines Day project with my students. After students gain experience with line styles and using different line weights, they create a simple count-our line drawing to be engraved on a greeting card.
I plan on experimenting with different card stock and stationary paper, but for now I just cut down the poster board I had laying around. Red lines cut, blue lines score for easy folding.
SETTINGS | Poster Board thickness: .01"