history of the yoyo as a weapon

[zamboanga]

hi forum members,

i have read and heard stories about the yoyo as a weapon in older times. most sources in the net attribute its martial origin to the philippines. i even read once (ripley's?) that it used to be 1 foot in diameter in size with a 20 feet long cord. the wielder supposedly waited in a tree and flung the weapon on unsuspecting prey or enemy passing below. has anyone seen or have in possession this unique weapon? what tribes could have used it?