Below are some pretty funny examples of 'subliminal' messages in ads. It's easy to say that these are all in the beholders imagination, but, somethings going on in these images that I at least consider interesting. You be the judge.
I got so caught up in on subliminal imagery that I went used the idea for a 'slick board' (a skateboard graphic made from an actual photo, these deck assignments were very coveted, and usually experimental). There's all sorts of stuff placed in here, apologies for the photo quality: