Here’s one you probably missed seeing in the wild! Check out what Oxy did as part of their “Disappearing Dots” campaign. Sure, the effect has been more than re-re-cycled on our site, but the idea behind it qualifies it as very smart optical illusion advertising! Old-timers will probably remember how Ariel did something similar back in the old days…
Anyway, focus on the bottle for half a minute, and see the surrounding dots completely disappear! When you’re done, you might want to check similar ones (links in this text and color adapting category).