This is one to file under 'not new, very simple, still brilliant', if you're the filing type. It's exactly what it looks like - a banana hanger to keep your bananas from prematurely ripening the rest of the fruit in your fruit bowl (which I recall from my GCSE biology is caused by the high quantity of Ethylene bananas produce). Anyhow. It's both green and ethical. Green because it's made from rubberwood, a type of tree that's used for latex throughout its living life and is - usually - only felled at the end of its life. Ethical because it's made by Thaicraft, a member of the International Fair Trade Association. You can buy one for £12 online from Traidcraft.
From: BEST OF 2008: Eco-friendy and sustainable shoes