do you think reservations that weren't flown might work
And you have made a check-in, got your boarding pass and then canceled?
Might work as I don't believe they will check the authenticity of the document if it looks like a boarding pass. (if applicable, the full size pages that people get to check-in when boarding from home I'm less convinced that it won't be checked)
You might try photoshopping while at it.
Elal used to have a leak concerning tickets that were canceled right before departure, and still miles for it.