During the campfire scene, when the girls are singing to the boys, Linus and Schroeder switch shirts so Linus has the purple one and Schroeder has the red one. See more
Look at this, a big yellow butterfly. It's unusual to see one of those at this time of year, unless of course, it flew up from Brazil. I'll bet that's it. They DO that sometimes, you know. They fly up from Brazil, and they...
This is no butterfly, this is a potato chip.
Well, I'll be, so it is. I wonder how a potato chip got all the way up here from Brazil?