Here's a nice little rare and individual travel pass holder. 

It has 2 slots inside, and is made of a flexible vinyl/plastic sorta stuff.

A couple of years back Orange commissioned some pass holders to be designed by up and coming UK artists such as Airside and David Shrigley and many more, and only  a small number of those were distributed.

So, here's one of the few - quirky design - brightens up a dull journey, and makes you stand out of the crowd.

Go on, have a bid

here's some more info on the Airside people

http://en.wikipedia.org/wiki/Airside

(picture displayed shows a pass flat and a pass folded)