As soon as i saw this on my facebook feed, i instantly thought of Cro's blog post about shampoo ads. This might not be quite what you had in mind, Cro, but it's a start, eh?
Updated, as the joke fell flat: In the US, L'Oreal is best known for hair colouring products, and one of their more famous slogan's is "Because you're worth it," as L'Oreal products are usually a tad pricier than others.
Chris Hemsworth is an Australian actor who plays the part of Thor, so "Thoreal" is a pun on "L'Oreal" and the "Because Hemsworth it" is a pun on the "Because you're worth it" slogan.
Wikipedia provides more info: http://en.wikipedia.org/wiki/Chris_Hemsworth