Looking for a classier word to describe a "packet" or "envelope"

At work, we sent a packet (letter-sized envelope filled with letter-sized things) out to a bunch of different people who had reached certain sales goals in our company. They have a bit of pomp about them, so while calling it a 'packet' or 'kit' is accurate, it comes up a bit short in my mind.

Looked up synonyms...'sachet' was an interesting idea, but its definition didn't quite seem to fit and it feels a little TOO pretentious :)

Any other ideas?

You might consider letters of recognition, commendation letters, or simply commendations.

(I think you could get by with "letters of..." Even if the package contains more than a letter. )

Here at Stackexchange, they called it swag.