These aren't worth keeping, right? 1st is *very* minor offset. 2nd is minor clipped planchet (I think I see Blakesly effect), but might just be PMD.
That minor offset was pretty common on a lot of the 70's & 80's Kennedy halves. I don't think the '96 is a clip. It appears too small for the diameter. At the same time, the Blakesley Effect would be evident on the opposite side of the obverse, not the reverse. The reverse looks like PMD, so I'd conclude that the coin was damaged in a machine or something like that. Chris