Add Ash for Unsmeltable Items

When you put something in a furnace that can’t be smelted, it doesn’t do anything. That’s unrealistic, putting a Lamp in a stove doesn’t stop it from working. A concept is to make any items that don’t do anything in a furnace be able to be smelted into ash. This item is a way to add a new feeling of experimentation to new players on which items can be burnt and which can’t. It could also be a fun way to detonate TNT on a timer. Just light it up with a Flint and Steel and it’ll burn at 3 ticks a block. Another use is to use it as borders. Lay it on the ground and it’s an easy way to tell where peoples boundaries are. I’m sure there’s more ways to use this, but I think ash is just a neat idea that I’d like to get added. Also it would be funny to burn all your friends items and leave its remains in their chest.