I only have the one that came with one of the 'titaniums' off EBay.
I'm going to get one of MickR's 'roo hide ones when I can.
I was looking at it the other day and I think the thin leather side might actually be imitation (it stretches a lot and has a cloth type backing).
Given that the claret was flowing, it was the closest shave I had ever done - I might be getting my technique almost correct.