Ideas for Circle bases

[Jake the Dog]

I'm looking for ideas for nice bases for Circle models. For Wold Constructs in particular.
Pictures would be useful too. :)

[Creaux]

I use a lot of cork and twigs on my bases. My army has pathfinder, dammit, and I'm gonna show it. I also use birch seeds for their nice leafy look.
http://i43.photobucket.com/albums/e384/Creaux/P5110070.jpg
http://i43.photobucket.com/albums/e384/Creaux/P5110060.jpg
http://i43.photobucket.com/albums/e384/Creaux/P5110064.jpg