Show me your papers

I lost an auction for a genuine WW2 British ID card yesterday on ebay so I'm a bit upset. I only wanted it out of curiosity though so no real harm done. What I was actually looking for was the WW2 German form of ID that civilians had to have, you know the ones that escaping British prisoners would fashion just before going out through the tunnel. I would then use it as an alternative to carrying my ID in my pants. Instead I would place the UK ID in the old and tattered German "papers" and hand the whole thing over whenever asked for my ID.

If anyone knows where I might get such papers please e-mail me.