My gues is that the middle one is indeed the early indian spear, but dyed black.
The shape is just exactly that, its without a doubt playmobil.
The left one is too thick to be lego, their hands would break when trying to hold it. Maybe its from a playmobil harpoon gun or such? the quality of the toy does look beter than the average stuff so it could be playmobil.
The right one.. perhaps its missing something that should have been on top? Maybe its a carrying standard or such? Looks too blunt for a spear. Not sure if its playmobil though, but it could be.
