Emphasizing the unbelievable:
* The Day the River Ran Uphill
* The Ballad of One-Eyed Jack and the Giant Turnip
* When the Sky Fell Down (and I Caught It)
* Bigger Than a Barn, Taller Than a Tree
* A Lie Too Big to Swallow
Emphasizing the character:
* Pecos Bill's Wildest Ride
* Granny Weatherwax and the Whispering Wind
* The Adventures of Silas Strongarm
* Finnigan's Fantastic Feat
* The Legend of Long John Tall
Emphasizing the setting/location:
* The Ghost of Grizzly Gulch
* Whispers from Widow's Creek
* Secrets of Sleepy Hollow Mountain
* The Mystery of Moonshine Mountain
* Tales from the Twisted Timber
More playful/humorous titles:
* A Whopper of a Story
* You Won't Believe This (But It's True!)
* The Truth (Mostly) About...
* My Grandpa's Tall Tales (The Ones He Didn't Make Up)
* Stretch the Truth (and Then Some)
To choose the best title, consider:
* The main character: Is there a memorable character whose name could be part of the title?
* The central event: What is the most unbelievable or exciting part of the story?
* The tone: Is the story humorous, suspenseful, or adventurous?
Once you've considered these factors, you can choose a title that is both catchy and accurately reflects the content of your tall tale.