Well, apparently I stand corrected, although I'll note that it's a non returning weapon (see description below). Perhaps a couple of us should buy them and try them out in test drops?
" Another weapon of the Philippines the battle tree yo-yo has been in use for 500+ years. It is dropped from trees (lucky that it does not return). Comes with History & Cord. Comes Painted or Stained (your choice)"
I can see it now, the Ethnographic Edged Weapons and battle yoyo forum...
F