Top balloon...
...but this part of the commentary on robotopless made me smile:
"As CNet also points out, if you're a pilot, seeing Darth Vader's huge fucking head coming at you at 5000 feet would be the most pants-wettingly terrifying experience ever."
http://www.toplessrobot.com/2008/08/if_only_you_knew_the_inflatable_power_of_the_dark.php
Well, it's probably beyond geekery to recall the infamous flash frame (no pun intended) from Mike Hodges' Flash Gordon in 1980, when the appearance of Ming's head signalled the disappearance of both pilot and co-pilot from their aeroplane, and consider it ever-so-slightly superior to a bit of Star Wars puff...
Yes, definitely a good day. Eventually. ;o) [Unrelated global telecoms-based aside.]