Which Amazon custom advertising solution is described as"outofhome placements that are brought into homes"?

Amazon on-box ads are correct because they literally bring advertising into consumers' homes on the packaging of Amazon deliveries. This makes them an "out-of-home" placement (since the ad is on a physical box moving through the world) that is "brought into homes" (when the package is delivered). Amazon Easter eggs are a playful, hidden feature within Amazon's digital platforms, not a physical advertising solution. Pop-up stores are temporary physical retail locations, which are an out-of-home solution, but they are not "brought into homes" in the same way a delivery box is.