This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Kesaran-pasaran (Japanese)
Kesaran Pasaran are mysterious floating "fuzzy things" which are often classified as a Unknown mysterious animals.
Spotting or Capturing one is said to be a very good omen, Legend has it that the Kesaran Pasaran will make you happy when you find one.
The Myth became quite Popular in the 1970's in Northeastern Japan, Kesaran Pasaran is often treated as a living creature, its said that these puffballs where often passed down from mothers to daughters as heirlooms. It's theorized that the Japanese name is derived from a spoken translation of "I dont know what it is".