There are loads of charities accepting Bitcoin as a method of donation.
If you do a google search for "bitcoin" + "charity" then you'll get a lot of results including individual charities accepting BTC as well as directories/sites listing charities that do.
There are a lot of them true, but some could turn out to be scam sites who knows people might end up donating money to scammers if they weren't informed which ones are legit.
If you are looking for charity. You can donate to this forum. This can even give you a VIP tag on the forum.
10btc is a huge amount to donate. I doubt anyone would donate such amount with the current price of btc now.