There are already several cures for cancer and holistic treatments that are very effective in aiding chemo and radiation.  Still the charitable coin idea is a great one.  It would be nice there were a coin that donated money to all sorts of local charities and second hand shops.  When someone wanted to donate, they would just buy charity tokens that would be sent to their wallet, leaving behind an encrypted public ledger.  At tax time, you just go into your wallet and read the labels or encrypted subjects on all of your donations to various groups, having an easier system of receipts.  That would also make it much easier to buy the coin itself by making that donation.

If demand for the altcoin goes up, much of the value is sent out from the miners to special charity wallets.