3 Counterfeit Half Dollars 1915-S 1935 1936

This sounds like the start of a really bad story, however, it turned out to be very good. I went to an estate sale and found the coin collection before anybody else did. I was told by the executor for this estate that the owners brother snuck in and stole all the coins. Actually, he had stolen the gold coins and silver dollars but left a ton of other stuff. The prices were ridiculously low. Silver rounds and bars were 10-15 dollars each, commemorative half dollars were about 5 dollars each and anything I put in my pile was priced barely above face value or less. It was a once in a lifetime hit.
It took about 5 days to sort the stuff and I plucked out some fake coins. I found 5 fake half dollars. I was eventually going to crack down and buy an XRF or PMV pro. My friend has one and these things are awesome. He tested these and they have NO silver. The fakes I'm showing here are bad. I spotted them during my ID process and I'm far from being an expert. There's a 1915-S Panama-Pacific Expo, 1935 Gettysburg and a 1936 Arkansas Centennial. All three are garbage and I hammered a hole in the center so these don't end up in another collection. I'll try and get some pics of the better stuff.