Do recall anything about the shape, size or colour of the seeds? Or anything about the tree from which they came? and can you recall where collected... park, private garden, rainforest etc?

It was large, yellow / orange from memory. It's lost it's colour but this is another seed I still have.

And it was taken from the forest (Iron Range). Naughty taking them I know). I liked the colour and actually didn't mean to take them home as they were in pocket in my backpack. I found the when I got back and planted one in December 2014.

I'm sure I've seen that somewhere before but can't remember where exactly. Haven't been to Iron Range, but could have been anywhere Cooktown downwards. I think it's a Brachychiton with juvenile leaves. Do you remember what the seed pods looked like?

Thank you for your comments. The leaves are soft (not waxy, hard like a Brachychiton). The seed pods are posted on this chain.