There are plenty of ways to recycle all the old phones you've got sitting in a drawer somewhere at home, but this might be the first one that actually pays you to get rid of them. Mazuma Mobile claims they'll pay up to $650 for your old mobile.
Depending on the type of mobile you have, you can earn between $1.60 and the maximum $650 by selling them your phone for recycling. You don't have to pay anything - you fill in a form on Mazuma's website, they send you postage-paid envelope and when you send in your phone, they check it's the same model as you told them before they pay you. They also take non-working phones, although the payment amount is obviously lower.
There's a pretty extensive run down on the different values for phones on the Mazuma website, so if you're thinking of ditching your old handset, this seems like a pretty decent way of making a quick buck from it at the same time.
According to the press release, Mazuma has been operating in the UK for four years and has paid out about £68 million for recycled phones over there. Hopefully you guys will get similar amounts down here...