I just received this email advertisement from a company we've done business with before (not technically spam, but to me, any sales emails are spam).
They're advertising Free Shipping. Apparently it's a pretty big deal. The email's only purpose in life is to tell me about their free shipping. The subject line hinted at the free shipping, the contents are all about free shipping... and someone obviously tried to place a graphic in the email to make the "FREE SHIPPING!" message really pop.
Uh, right... nice work there in the attention-grabbing department.
In case you can't tell, the tiny smudged gray blob says "Free Shipping!" Way to go, marketing ace.