Lord of the Rings: The Return of the King - Where's the Blood?
When Sam is up in the tower to save Frodo close to the end of the movie, Sam stabs the Orc with Sting. The weird thing about this is, Sting doesn't have any blood on it! Sam left it in him for a few seconds and there's still no blood on it!
Sting is a magic sword, you know. I always thought of it like it would repel blood and stains and such, especially orc blood because elves made the sword; it stands to reason their craftsmanship (especially when imbued with magic) would repel that which they hate most.
Actually I happen to agree with the last comment, however....If you read the Fellowship lately so that things are still vivid in your mind, you'll remember that any sword pulled from an elven sheath will be bloodstain free...so yeah, it's pretty interesting magic, I want one of them sheaths now.