I've "giving" this idea away because I'd really love to see it done, but I'm just not in a position to pursue it myself at the moment.<p>Here it goes:<p>- Rid the world of the costly process of managing spare change by collecting physical coins and exchanging them for bitcoins at a 5% convenience charge.<p>- Release a mobile application with a "collector" mode and a "releaser" mode.<p>- Collectors pick up the change and they get to keep it for themselves.<p>- Collectors must maintain their own balance of bitcoins (or any currency really) so that they can actually send the payment to the receiver from their own account.<p>- Collectors are motivated to do this because they earn 2% of the convenience fee for each transaction.