Stare at this ad for 20 seconds—does it work for you?
(click ad, via) The zit-spots kept coming and going, and never fully disappeared for me. Plus, now I have a fucking headache. Conclusion: OXY doesn't eliminate pimples and gives you a headache. Also: I don't have 20 fucking seconds to waste staring at an ad, dickwads. Ad agency: Ogilvy, Johannesburg.
Here's two better optical illusion ads: a trippy one for a Calgary hemp store, and a vibrating one for a sex toy seller.