Hi Folks, I think Jesus did not leave images or writings on purpose. He knew human beings tend to make idols out of everything.
I think he wanted to give his message the best environment to thrive without falling into known pitfalls of human misundertanding.
I hope that makes sense.
As far as the image on Playboy, it was intentional. It is human folly, God has important things to take care of!! He loves us much more than this childish picture could offend him!
I believe you are correct. Some people seem to need man made images to pray to. After all, some people worship rocks. ;0)