Comic Merch
Yes, they need someplace to sell all the knives they confiscate at security. (The way I am sure the Mora authorities sold on Emil's confiscated explosives, to bring it back to the comic.)
How about this?(Yes, yes, I know it's fake and impractical.)
I doubt it would work well as either knife or sword, but it is decorative and funny.
You know you are an SSSS addict, when you write "most clearest" in an email. A work email, to a project manager you don't really know because he's from another country, and a native English speaker.