Finally made this design into a sticker -- for sale here:
https://www.etsy.com/listing/1478848249/we-love-you-portland-stickers?click_key=b322fbfed46e3a28df434085fcd8b5750da01dbc%3A1478848249&click_sum=32c8b2bf&ref=shop_home_active_1&frs=1