See http://s.earthbound.io/3y for archive, print and use options.
Pencil decorative lines doodled and scanned, then fixed up.
This animated sequence of variants was accomplished by random selection of colors and fill from the list tigerDogRabbit_HexColors.txt at: http://s.earthbound.io/ColorSchemesHex and these scripts (also from _devtools): potraceAllBMPs.sh, BWsvgRandomColorFill.sh, renumberFiles.sh [svg], allSVG2img.sh, ffmpegAnim.sh.
Tools used: A flatbed scanner, Photoshop, Adobe Illustrator (for svg node reduction while preserving virtually identical appearance), Inkscape, LibreOffice draw, k-meleon (for quick svg previews), cygwin (to enable all of the listed .sh scripts), ffmpeg (to create the video via ffmpegAnim.sh) and svgo_optimize.sh (which has a nodejs and svgo module dependency; you can also just use the SVGOMG web service (do a web search–you can use it to optimize an svg and prepare it for use by BWsvgRandomColorFill.sh).
A hoity-toity robot talks about this work at http://s.earthbound.io/artgib