A spoon billet is a piece of fresh wood on which you can draw your own design before starting the work with the axe. The blanks are prepared with a chopped-in crank. To preserve the properties of the green wood for a longer time, you can store them in the freezer or in water until you start working on them, which keeps the wood fresh.
Feel free to mention in the comments if you have a specific preference for the type of wood or the design.