Two screen captures of what I believe to be the fabled "potato asteroid" (on the left) and a shoe the ILM staffers slipped into the asteroid field, those kooks, (on the right). I scanned the other asteroid sequences to see if I could find any more secret hidden objects, but turned up zilch. The shoe, narrowly missing the Falcon, looks to be a Converse All-Star circa early eighties.
One of Ben Kenobi's lesser known Jedi tricks: making the stormtroopers on the right believe they are seeing mirror images of themselves (on the left). Very crafty indeed...

The highlight of the Star Wars movie, you ask? Death Stars being blown to tiny bits? Nope. A seedy bar full of groundbreaking ILM wizardry? No way. Aunt Beru? Close, but I'm afraid not... The highlight of the entire movie is a split second scene that demonstrates exactly why the Empire never really stood a chance -- no matter how whiny some of those rebel-hero types could be. I am speaking of the Trooper on the right.

"And these blast points, too accurate for Sandpeople. Only Imperial Stormtroopers are so precise." Right. Precise.