$5,000 in Muggle cash (someone tell this boy how much that actually is; he doesn't understand Muggle money at all)
A note describing the two portkeys in the surrounding area and their respective destinations, both uniquely-shaped pebbles-- one leading to just outside a log cabin in Reading, the other to a houseboat. Part of the note reads... if you're gonna be a target, it's better to be a moving one
A small box with a note that says Pipsqueak on it. Only Mia can open it. Inside it, a ring and a note that reads I have one, too. I charmed them so that we'd be able to feel each other's heartbeat. That way I at least know you're still alive no matter what.