Just taking a wild stab here, but I think there are ways to save your images and load them. Possibly with 'dictionary' and/or 'webstorage'. I haven't figured out the syntax details on this stuff yet.
I do think you could also make a .capx and send it to your friend, then he/she can open this .capx in addition to the one they have, and copy your stuff to their layouts. Then they close the extra .capx.