Whizbang Dustyboots
Gnometown Hero
My favorite are all the Merry and Pippin scenes in the extended editions. After they have lembas bread explained to them, and that each one can last a fellowship member days, one of them asks the other: "How many did you eat," to which the other replies, "four."Here's a few off the top of my head:
"Nobody tosses a dwarf!"
Gimli and Legolas's "competition" counting orcs they have killed.
Merry telling Pippin "I don't think he knows about second breakfast, Pip."
Sam describing meals with "po-tay-toes" to Gollum and saying Gollum could not say no to them, but Gollum says "Oh yes we could."
And, of course, them totally not being stoned while watching the ent-wrought destruction of Orthanc. (Yes, yes, JRRT probably didn't mean for pipeweed to be marijuana. The book remains intact, no matter what Jackson did in the movie.)