Any idea's of what these could possibly be? They weigh practically nothing, paper thin. My instinct is fakes or copies. Any help would be greatly appreciated.
The one on the bottom is a late Roman bronze coin (AD 342-348) with the "two Victories" reverse type. It reads VICTORIAE DD AVGG Q NN. Hard to read the mint mark in the exergue, but it looks most like SIS, indicating the Siscia mint. The star in the field between the two figures is also consistent with the Siscia mint. No way to know which emperor produced it because you don't show the obverse. It would either be Constans or Constantius II. It is of extremely low value, the kind you get in uncleaned lots by the kilogram.
The first two are Ottoman Akce or Para. The first minted in the year 1187AH (1773AD) in Constantinople, the second probably around the same period in Egypt