[amelius]

Mask advertisements, and replace them by beautiful paintings.

[davnicwil]

An ad-blocker for the physical world? Hmm..

Will employees of the city 'pop up' in your path as you walk down the street: "Hey! I see you're using an ad blocker! The city relies on advertisements to fund the street you're walking on right now, please consider turning it off!"

[vbezhenar]

Your AR device will replace those employees with beautiful dancing girls, of course.

[timpark]

Obligatory link to Black Mirror-inspired hackathon project "Brand Killer": http://jonathandub.in/cognizance/