No billboards for WGN's John Williams? He'll see about that.

Of course it’s just for fun, but grassroots, guerrilla marketing-style ads for WGN Radio’s John Williams are showing up in some unusual places. And social media is pushing them out even further.

John Williams is a little upset. He’s noticed that afternoon-drive host Garry Meier gets billboards. New morning host Jonathon Brandmeier gets billboards. But not him. So he’s asked listeners help him out. It’s all in fun, but sometimes that’s what good advertising is about. I found out about this through social media — which is helping give his campaign a further push.

A porta-potty at a construction site in Berwyn, IL asks users to listen.

A sign asking to “Save Millington Post Office” is re-appropriated for John Williams.

A post-it note ad left in a free copy of “Coffee News.”

Lynn Genter’s snowman decal promotes John Williams from the rear seat of her convertible.

Pzazz Gifts & Home Decor in McHenry, IL is giving shoppers a 15% discount for mentioning the John Williams sign.

Austin’s Barber Shop in Beloit, WI placed an ad on the ceiling.

WGN’s Traffic Reporter, Leslie Keiling put a sign up in her local Jewel Osco.

John Williams’ own sign in WGN Radio’s Showcase Studio in the Tribune Tower.