Seasonal Nature Table in Winter

What do you include in your Winter seasonal and/or nature table after epiphany?
I find it the most difficult season to represent inside the house and, as there is so little to collect on nature walks that it feels much less interactive for Cameron unless he wants to craft something for it.

Here's what we've come up with so far:

A Lady Winter felted figure, laying her carpet of snow and ice, some rocks and pebbles, some glass pebbles to represent the ice on the ground and some Spring bulbs, slowly forcing - I particularly like with these that we can watch the work of the roots, reminding us of what is going on underground.
We used a cotton brown cloth for the bare ground and a white one for the background. Since I took the photograph I've added a plain white candle too.

We haven't been adding seasonal books to our table, Cameron said it was too 'school display-ish' but I like the ones I've seen on other blogs and flickr.

I have this great book on nature tables/seasonal areas, it's beautiful. I'd love to find a Mrs Thaw figure, like the one in the book, for the end of Winter, I'm not feeling brave enough to make one yet!

If you're looking for more on nature/seasonal tables this flickr group is great for nature table inspiration and The Magic Onions blog holds Friday's Nature Table, where people share their lovely ideas.