If anyone ever finds a good shot of the Falcon's dash, perhaps they have this picture taped to it?
Or in Luke's X-Wing. Hey, they didn't know yet. ;)
Later...
BEN: ...That is the reason why
your sister remains safely anonymous.
LUKE: Leia! Leia is my sister.
BEN: Your insight serves you well. Bury your
feelings...
LUKE: (interrupts) Hold that thought! (runs to X-Wing to hide a certain photograph)