That's a great idea. Ask Jim if he'd be willing to be caretaker of the account. Use paypal to make collection voluntary and easy.
The hard part will be selecting the lucky soul from the pool of American heroes. But the publicity will pay off big time during the 2008 election cycle, if VG flights start when planned in '08.
Better idea: a FR lottery for a ticket! The winner becomes the first Freeper in space!