You can save the tissue for later.
If you read the whole thread you'd see the person who's firepit that is originally posted the pic on reditt and he lives in Germany and when someone ventured a guess that the person who made it probably works at Knipex and that it was probably made with tools that didn't pass QC and were otherwise going to be sent to be destroyed he replied "
nearly correct 
". My hunch is he didn't necessarily work for knipex but perhaps for recycling company where the rejects get sent.
I only venture that because I work in US automotive manufacturing and we've for a looong time had a problem with our scrapped parts showing up for sale on ebay or whatnot, and they couldn't have come from anyone in our plant as it's not wholly unlike Fort Knox in that respect, but we had no control over what happens once the truck from the recycle company picks up the dumpsters, so now we have a guy that pretty much all he does is deal with parts that failed inspection and couldn't otherwise be reworked and he cuts them up and/or drills holes and such in them to make them more obviously no good before they are allowed to go in a bin.