I’m imagining Hogwarts in the future. Ron & Hermione’s granddaughter Peony is Headmistress, and Harry’s grandson James III has only recently been released from Azkaban (for what we don’t know).
All we know is that there has been a love affair between Peony and James III, and while one she risen to the top of her profession, he has fallen from the grace of his legacy (presumably because he couldn’t handle the pressures of the Potter name). Peony has found this trunk in a Hogwarts attic, and she hopes it will bring James back to his senses and prompt him to realize his birthright as the progeny of a great Wizarding family.
Here is the trunk she sent:

She sends the trunk by owl to James who is currently residing at the Bainbridge Home for the Temporarily Indigent in London

Hogwarts Crest & outside of "leather" trunk

closer inside picture

And...everything comes out!

Included are:
-a "patronus" poster, Harry's first invitation to Hogwarts school, a white feather in memory of Hedwig, a framed picture of Ginny Weasley, an invitation to a memorial service for Dumbledore; all taped, nailed or glued to the front door
-a pensieve, with memory intact (fimo)

better shot of the "architecture"

-a Nimbus 2000, (yes, I know it was destroyed in the book...I'm thinking it was reconstructed for Harry as a decorative gift, never to have magical properties again)
-a Sorting Hat (the only other one in existence) (fimo)

-a small urn filled with floo powder

-a prophecy, a snitch, Harry's first wand box, a Phoenix feather, and a Sorcerer's Stone

-a Basilisk fang (Fimo) and two books

-3 potions: Amortentia, Draught of the Living Death, Felix Felicis; one memory, Harry Potter; and dried gillyweed

This was for my partner in the OTHPT swap, Pinkleo....comments & criticisms welcomed!
EDIT: there are some fairly large plot holes in my story, the largest that has been pointed out to me is that Peony & James III would be related. OOOPS! anyway, that whole issue is covered as well as lots of other cool HP mini things on the OTHPT board...
http://www.craftster.org/forum/index.php?topic=340280.0