Damn that was way too easy.  Thanks for the video.

Would it matter what happens to the paper? Once the hologram is off you can always reprint it.

I mentioned it to someone else in a PM but:

Certain issues have been well known for 9 years
https://www.coindesk.com/markets/2013/08/13/defcon-hackers-crack-physical-bitcoin-casascius-coins/

Supposedly they (Casascius) fixed their holograms.
But with everyone else we have to hope they bought their holograms from a quality maker and not just the lowest cost one.

-Dave

Are we poor again?

Its denatured alcohol

This is indeed something very critical, and among the top of my concerns when elaborating physical Bitcoin items.
You can read more about how these issues are addressed at Coldkey by checking this thread : https://bitcointalk.org/index.php?topic=5145343

Many thanks Sat0shisGhost for making the chemical / solvent tests on Coldkeys and sharing your results with us
Chemical tests on Coldkeys : https://bitcointalk.org/index.php?topic=5145343.msg51448024#msg51448024

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About the hologram, the one in LPL's Youtube video is a generic one.
They are certainly not as elaborated as the Casascius hologram, despite it being exploited already :

https://www.coindesk.com/markets/2013/08/13/defcon-hackers-crack-physical-bitcoin-casascius-coins/

I don't have a definite answer, but I have a feeling depending on the type of ink that's used on the paper in question, it could penetrate "some" of them ^{[because of the ethanol part]} and distort them to a very small extent ^{[don't quote me on this one]}.

I found what you were looking for in "another article":

• Edited version

this is why I always state everyone should make their own keys but there are some makers who flat out refuse to make DIY and demand you trust their keys

I don't think holograms, or any other physical method, are particularly good at keeping something secure.

You need to trust the creator of the collectible, because they have access to the private key.

This is the easy part, because they have to build a reputation, and they don't want to lose it.

But when buying from third parties it then becomes way more difficult to trust, as they can indeed get the coins and put back the hologram, or tamper with whatever mechanism there is.

It's the same with gold and anything else really.

I think you should leave the video with the impression that security holograms are not "tamper proof" any more than a lock is not "pickable" so it doesn't matter where you buy them from...  Casascius addressed this long ago by lasering the edges of his holograms so that they could not be removed cleanly with this technique.  That was a great solution.  In my first round of minted seats I also had crazy security features (anybody ever peeled one of the originals with the security bump under the hologram?) that proved to be too time consuming and labor intensive for me to continue while offering what I felt was a bargain basement price on my work.  I imagine Casascius probably quickly tired of lasering his holograms onto coins as well, but it was a good solution that wouldn't matter where you bought the holograms from.

It could be but this would seem to at the least taint things, if not borderline bastardize them as you could have some holo's with and without the laser engraving but not done by the maker.