floral kindle
This was a fun idea for a joker I had which would basically act as a sort of panic button. Basically, you would be able to use this joker to give yourself any card to put in your hand, but then it would destroy the joker afterwards, and the card would also be destroyed after being used.
Now, I'm no Balatro expert, nor have I played any mods (for all I know something like this might already exist), so this could be extremely overpowered or extremely underpowered. I could see reasoning for making the card permanent, or perhaps letting you choose what sticker/effects/etc it has but keeping it getting destroyed.
Or potentially it generates one card a round and puts it in your consumables section, and 'using' it adds it to your hand, but if you don't use it then it gets destroyed.
Ultimately I found a fun little idea I had would be good enough to put in the game, but I figured it wouldn't hurt to share, maybe spark some discussion!