discovery

Notice anything unusual about those tins?

Answer: both labels use the same blue. I was absurdly proud of myself for discovering that.

And in further news, did you know that "WD-40" (the name of the product on the right-hand side) means "Water Displacement, 40th formula"? It was invented by Norman B. Larsen in 1953. See Wikipedia: WD-40 and Norm Larsen

UPDATE
From its own website, WD-40 was created by the Rocket Chemical Company and its staff of three (two of them unnamed). Plus if you want to get technical about it, the name WD-40 actually stands for "Water Displacement perfected on the 40th try".