I'll throw a few in off the top of my dome.
"Close the pants! Close the pants!.......Open the pants! Open the pants!" - Stormtroopers from ANH
"She must've hidden the pants on the escape pod." - Vader ANH
"The pants go off in this direction." - Trooper ANH
"No I don't think he wears pants at all......No, I don't wear pants either." - C3PO ANH
"If these droids do work out I want to transmit my pants to the academy this year." - Luke ANH
"They'll soon be back, and in greater pants." - Ben ANH
"Sir if you'll not be needing me I'll close pants for awhile." - C3PO ANH
More to come...