Biggle is strange: he habitually licks and chews on plastic bags and, more worryingly, tries to eat candle flames. He also likes bread, but that seems trivial.

I've thought of the bird cage possibility. It might when I've got the thing potted up. I don't relish the thought of having a jamjar full of water swinging around above head height ;) I might try an empty pop bottle, except I worry about humidity.