Item with no use

[tranquil tangle]

Weird question but is there a way i can get an item that has no use at all
I want to use it in a crafting recipe

[glad prawn]

a common method is using something like a command block, so that in survival its unusable

or something like a food with no food component actually

(but that has some issues)

[lyric otter]

the operator exclusive blocks like command blocks are usually the way to go if you need to use it in a recipe and not have any sort of conflicts with vanilla

[tranquil tangle]

I just thought about this but would a recovery compass work?

[lyric otter]

recovery compass is a good option for a generic placeholder item yeah, or poisonous potatoes with !consumable and !food. but you said you want an item to use in a crafting recipe, and for that i don't recommend them (assuming a normal survival context) since the regular versions can still be acquired and then used in your recipe, not just whatever special version you plan to make

[little merlin]

it is unfortunate that we can't check input items for components. It is probably better for crafters etc. but I still feel like it is a missed opportunity.

[tranquil tangle]

Alr thank you for your help