You see a lot of bumper stickers that say "Keep Portland Weird", but I feel like it should be "Keep Portland Unique" instead. Here's an example:
Back in the 1920s and later, folks in Portland would tie their horses to these curbstone rings. And now Portlanders are keeping the tradition by tying these plastic toy horses. You see them everywhere, even in our neighborhood where it had been a horse racing track long time ago. Its amusing to see some horses with heads chopped off (especially with people like me trying to parallel park) next to the curb. And neighbors faithfully replace these horses.