You opened the gift and find a Sweet Rock Candy Reaper!
You opened the gift and find a Desert Raider Earrings!
You opened the gift and find a Green Piroctapus Beanbag!
You opened the gift and find a Black Basic Flats!
[Item=Battered Snippet of Paper] You opened the gift and find a Battered Snippet of Paper!
A golden toilet that time.
Yes, Subeta, I know I'm crap. But c'mon.

You opened the gift and find a Mail-Order Superhero Transformation!
(I've gotten other things than this, but this is the most noteworthy item I've received so far.)
EDIT: (Got another box right after posting here)
You opened the gift and find a Lilac Daruma Doll!