The little bugs turned out to be great ring holders! It's part of the REfreshed display at the CBCCD gallery. I love it when something silly turns out to be useful. If you're in Sydney take the time to wander through the gallery. It's a great substitute for a walk through the garden in February! Stop and smell the roses (fresh paint). :)
Here's a virtual tour of part of the display if you can't get there.