I've seen that one a few times but I think my favorite variation is "Tell your cat I said pspspspspsps"

Best rear window I've ever seen was the Hitchcock one

This is actually the slogan of WeRateDogs! https://weratedogs.com/

Tell your dog a said "who's a good boy?"

There all good dogs, brent.

One of the best of all time.

Would pair nicely with "tell your mom I said hi" sticker.

This is the "live, love, laugh" of bumper stickers

Bro i hate that, i have four cats and none of them respond to pspspspps, that's tje sound parents make when they want their human children to pee, it doesn't do shit for cats

Which is why 11 or 12 is the worst grade they ever give on a scale of 1-10 😁

This aligns with one of my favorite sayings about dogs.

Everyone thinks they have the best dog and the funny thing is, none of them are wrong.

I don't see a lot here in Australia so it felt pretty novel

My favorite is "tell your cow I said moo"

Fucking finally! I grew up using an aggressive psssst as a his noise to tell cats to stop doing that, so to me it sounds like you're either doing that a lot or chasing a cat with a squirtgun. I've always clicked my tongue for their attention but I don't know how to spell that.