As happens far too frequently, this quest started with a perfectly innocent question from my friend Mike:
Why, Mike? What do you need?
“Knit a scarf that is at least 12 feet long and is being worn by 3 people at one time.”
For a scavenger hunt. A really big, ridiculous, awesome scavenger hunt.
12 feet with no gauge or width requirements? Easy peasy.
Two skeins of Red Heart (Cherry Red and Royal blue), one skein of Impeccable “Folklore” variegated, size 13 needles, a few feet of Premier Starbella “Fly a Kite” just for added whimsy, and a few hours later…
Bam
12+ feet of scarf
unbound page 
So this means the 9-10 foot one you made for me is no longer your record? 😉
C1
Well, the Doctor Who scarf was over 12 feet… 😛