I just obtained (thanks DP for pointing it out) an Xbox Gathering pack. The contents were to remain a mystery until the pack actually arrived and boy, what a party we'd have had.
See for yourselves:
http://s138.photobucket.com/albums/q...eringpack2.jpg
One concern is the MS presumed their customers were overweight. All 4 t-shirts are one handy size fits all....XL.
With that in mind, there is only one invite to the party so I guess you'd have atleast 2 spare t-shirts and a spare balloon.
I am saddened to discover that no photographs were ever taken of the fun evening that ensued.