Yeah, we have birch trees though you don't see a lot of them here. I think there are "tropical" varieties. I guess my only thing is portability - they rent and most likely at some point will move on, perhaps to another city in time. I'm not sure where they could plant it.

Definitely one I'll keep in the back of my mind, thanks Phrank. I like the coin idea too, I think we make commemorative coins.

James.