So how do I go about loading it with only the first 12? I assume these are still secure as long as no one peels the sticker right?
I would not load any coin. Keep your btc in your paper wallet or Trezor. Just my 2 Satoshi s
not even a DIY coin you dis yourself?
Nah.
It's better if you keep collectibles in the exact same state as when you've acquired them.
You can always print keys for a collectibles that comes with a detached holo, and put the holo on top of it, but this may devalue the item a lot.