Buttons can be used to trigger doors, trap doors, etc. for a short period of time. To make a Button (stone) you will need, Cobblestone and Stone using Furnace. Please follow the following steps to make a Button (Stone).
In order to make a button (stone), the basic item you will need is cobblestone. You will have to find and get at least one cobblestone. Use your stone pickaxe to get one.
Stone using Furnace
Now you need to use a furnace to make stone from cobblestone. So make your way to the furnace and add a cobblestone in the upper box and coal in the lower box to get required stone in the right-side box to the furnace. Add this stone in ready to use stock. Stone can be used as a crafting ingredient and to make smooth stone.
Now you will have to use the crafting table to craft a button (stone). Go towards the crafting table and open 3*3 crafting grid to add stone in the middle or any cell of the grid to get one stone button in the right-side box to the crafting table. Add this button in ready to use stock.