I love these little Dreamtime strawflowers, not just because they remind me of that Kate Bush song and it's one of my all-time favorite albums, but also because they close up like little golfballs at night and then open in the day to this.  To touch it, it feels like straw, and you'd never know it was that pliable.  There's a metaphor in there somewhere, but I'm too overworked to find it.