the only thing you can subs is the photography - you can swap it for the honeymoon photshoot in MK during park hours or in EPCOT for an additional $50 if you choose to use an outside photographer. Altho' not an actual subs, you can also choose to use the 4 hours limo service at any time, you are not restricted to using it on your wedding day. Other than that, whatever you don't use - you lose!