Here he is in a Riyadh hotel - wearing a keffiyeh featuring a Star of David pattern:
Here he is in the second holiest site of Islam in Medina, the Prophet's Mosque:
At that same mosque he is carrying his tallit (Jewish prayer shawl) and tefillin bag!
This one-man peace mission is, frankly, amazing.
But now that these photos are being published, the Arab media is going a bit nuts. There are several articles about this today, all of which say that his visit "a wave of condemnation and disdain among activists on social networking sites."
They didn't notice the tallit bag, yet.
The comments at the Al Jazeera Facebook page are mostly, but not entirely, negative, with some pointing out that Jews are allowed to visit mosques. (Ben Tzion didn't try to sneak into Mecca, which would be forbidden by Islamic law.)