This originally started out as my "Spread Love not Germs" env. (for the Mail Art Call -- ), and instead of wasting the paper, got the idea to cover over it (as best as i could) from an env. Jean sent me (in which she used marker).
I used black india ink and just started making thick stroke marks with my 1/2" wide coit pen. (see pics below)
I also used my 5 point automatic pen for more unique strokes. Then added color, and metallics and colored over the red hearts to make them diff. colors. Since there was no room for lettering, I had to cut and paste the name and address (much like I did for this one: https://snailmailingmadness.blogspot.com/2020/08/thank-you-to-open-sky-stories.html ).
I thought it looked really good, but *UDATE: I mailed it the week of 10/11, so she would hopefully get it before Nov., when she moved, BUT she didn't receive til . Not sure why it has Return as she did mail forwarding.