Pencil & Paper (Free .AI file).
Saw a cool piece and decided to vector it. Free download of the Illustrator file.
Original drawn design by Lobo2ffs.
https://www.reddit.com/r/oddlysatisfying/comments/46fbk8/those_lines_are_on_point/
Free source file: https://www.dropbox.com/s/d140crzzlz47jp0/PencilLines.ai?dl=1