Sunlight soap : a child can use it / Lever Brothers Ltd.
The pattern
This still is filed under Iconic figure claim.
Define
A single figure, drawn, silhouetted, or posed, is the whole claim. You can read it across a street.
Mechanism
Compression into a body. The figure is not decoration. It is the sentence. Distance-legibility is the test.
Verdict
Poster scale, outdoor, packaging at a glance
Why it works
It uses hyperbole ('a child can use it') visually demonstrated by a charming illustration. The short, rhyming poem on the back makes the core benefit ('You needn't boil, nor toil, nor scrub') highly memorable.
Steal this when
You want to emphasize extreme ease-of-use by showing someone who conventionally shouldn't be able to do the task easily succeeding at it.