I would not recommend doing any sort of alteration of your seeds without instructions on what it really means to you, otherwise you might see your paper wallet in 10 years and forget, what are these words and how do I put them back together in the correct order.
Whereas, if you just have some personal password to an encrypted file which you have multiple backups of, offline preferably, then you have the all the words.
I'm having fun making seeds with Electrum:
>>> make_seed(256)
"exit pass vapor setup fossil away oppose quit safe element credit blouse doll naive this fat gospel jungle beach away bread hub speak deny"
>>> make_seed(256)
"gate viable affair resource garage divorce delay bean middle weird story innocent symptom butter palace rally target cycle scrub town kiss abandon actress rabbit"
>>> make_seed(256)
"glass poet explain next tired misery tool hover lab wrong lamp usual lemon hub creek repair radio lecture reveal behave since egg night faculty"
>>>
It's possible you could duplicate the words 3 times, then cross out some, but any 2 parts can form the whole set, in order. I think this is done with the iancoleman bip39 tool.
For example: using
https://iancoleman.io/bip39/ and generating 24 words.
So the BIP39 full word phrase would be:
helmet rebuild obtain naive kid company belt wrist twice balcony supreme liberty bitter fee arrest develop shallow salute enemy layer candy market question hard
Then there is the Split Mnemonic which would be:
Card 1: XXXX rebuild XXXX naive kid company XXXX wrist twice XXXX supreme liberty XXXX fee arrest develop XXXX salute enemy layer candy XXXX question XXXX
Card 2: helmet XXXX obtain XXXX kid company belt XXXX XXXX balcony supreme liberty bitter XXXX XXXX XXXX shallow salute XXXX layer candy market question hard
Card 3: helmet rebuild obtain naive XXXX XXXX belt wrist twice balcony XXXX XXXX bitter fee arrest develop shallow XXXX enemy XXXX XXXX market XXXX hard
Time to hack with only one card: 3830854 years
You'd need any two of the cards to get the full 24 word phrase in correct order.
But I think paper wallets should remain as equivalent bearer instruments, then physically protect them. If you are intending to do any sort of encryption, then you'd store it in USB or flash media, or giant QR codes maybe.
Giant QR codes would make an excellent paper wallet actually.