Duplicate Firework Designs Like Banners

Picture this: you have designed a good firework and have used some diamonds or even a creeper head to craft it, but now you don’t really want to use the finite amount you have because they were really expensive and tedious to craft especially for a 3-second particle effect.

Now compare this to the current state of creating banners: you can just copy the designed banner with a blank banner in the crafting table to copy the design over. This was done to reduce the cost and tedium of crafting banners.

But why isn’t this also the case for fireworks? They are a lot more tedious and expensive to craft.

It would be great if you could just combine a designed firework with gunpowder in the crafting table to copy the properties over to a new firework.