This isn't exactly a campaign of any kind, but I thought this was a funny example of everyday advertising that is all around us. Their clever change in text size resulted in a hilariously deceitful sign.
Great idea for a photo op...
craft beer in the Northwest
Seriously?! (Dollarama item)
Then why did you built that sign? Dumb bots
Great! That's a clear "sign" there must be a waffle shop around here somewhere. Breakfast here we come.
witty pub signs - Google Search
Here are some funny and geeky chalkboard signs that think outside the box.: