Having just returned from a fabulous week in St Petersburg I am currently working my way through Helen Rappaport's compelling book Ekaterinburg - which includes a photograph of an icon of the Romanov family as the 'Holy Passion Bearers'. Has anyone any idea where this icon can be acquired? For those who haven't been a visit to the Peter & Paul Cathedral is a must
I have seen quite a few icons fitting the description you've given. I personally got one off of ebay, direct from St. Petersburg. Here's what it looks like:

Try ebay or
http://archangelsbooks.com/proddetail.asp?prod=NTW-0926 Hope that helps!
I love this thread by the way, it's a very interesting read. I'm sad to see it's died down recently.
I have a question for those of you who are Orthodox, or know much about the rituals of visiting relics...I am Orthodox myself, but have never visited relics, so I don't know proper procedure. Are you supposed to follow a more strict practice of fasting beforehand? (Other than the given Weds. Fri.) Thanks in advance, if someone answers.