Depending on what people donate, I'm thinking a floral arragement for tomorrow, a fish in the AN name dedicated to Jack (seeing as he said he wanted to do that if he had the money just a week ago) and then something to send to his parents. If that works for people we'll go from there. Any extra money can be donated to a charity in his name. Jack was a big fan of giving back to people.
Those that want to donate can send them to my PayPal account.
edit: There's an official tribute page now with the correct PayPal information.