Sort:  

Lol, yeah the funny thing is I do have those 2 pictures. But I decided against even taking a picture of what it looks like now.

It's obvious if it is stolen, but I want to know if someone ever opened mine, then reassembled it.

I find a problem with the wing nut and washer method, someone could open it, take pictures and close it up without you even noticing, then wait for a great time to steal your crypto (or take all the time in the world to crack the 25th word/passphrase).

With zip ties and markings, it would be easy to open, but a pain in the ass to close and reassemble in the same way.

Maybe scratching or drawing something on the outside of the washers would be good cause chances are they won't notice before taking it apart. They would naturally line up a line. So you could just line up the prime numbers or something.
You could also intentionally screw up the order of the stack since they have numbers anyway (not 1,2,3, all same side up). Just store your order in email and check when you are worried for whatever reason.

You can buy stickers that deteriorate if broken, like warranty void if removed. In fact some of the commercial options use this.

Check out the 10 second video for the Crypto Key Stack at the end of this page.

https://cryptokeystack.com/

The home printable paper wallets also use stickers you can purchase.

That's good, unique tape is best, in case, they have the chase to come back after ordering it on Amazon.

Crypto key stack is actually where I got my idea from. I just thought buying 1$ steel plates was cheaper...and less suspicious if people are checking out my mail. Building a deck, eh? Writing your name on your tools, eh?

I think the more measures you take the better. Sadly, chances are if it gets compromised it is someone you know and trust.
When I worked in IT, often it would be relatives who were scammed into thinking they were helping along with the occasional bad apple.