Out of the cards you posted, I think that Camnitz has a solid shot at being scrap. Very wavy borders on the left and right side, both being cut at different angles, suggust an irregular cut - not just indentions from being wrapped up too tight in a rubber band. Plus, the back is blank which is a big giveaway too.
As for the Titus, it's not really a wavy border, just sort of "pushed in" in one spot. If you look close, you'll see a similar indention on the other border about in the same location on that side. That, plus the wrinkle across the middle just give me the impression the card was wrapped up too tight.
A miscut on the back doesn't mean a card would be printer's scrap. You see cards nicely centered on the front have goofy backs all the time.
All are nice cards though and interesting finds. Some of my very favorite cards in my collection are cards that are missing color passes during their original print runs that, as a result, leave the card looking entirely different than normal. Quite a few sets out there have misprints like this - d311, e98, t210, e94, etc...just to name a few.