i have really wanted to get static cling stickers made that say something like "when you park in the bike lane you endanger a biker's life" or something catchier. and slap them on every damn car i go by. i love that it'll infuriate them but be harmless.
dm me if you wanna team up on this project.

or maybe something shame-ier

(this is what i mean by a static cling sticker https://www.stickermule.com/products/static-clings )