Like many others, I ordered a pile of free (as in both speech and beer) Ubuntu CDs through Ubuntu’s website. My CDs were shipped via a courier service called TNT Global Express.
I think that in todays environment of oversensitivity and confusion around explosives and air travel, an air-mail courier service like TNT could have picked a better name. I can imagine some humorous confusion that I would wager the folks at Homeland Security (whose sense of humor seems to have been surgically removed in the operation to excise their critical capacity) would not find too humorous at all.