The term "small pieces of wood" can refer to different things depending on the context. Here are some possible answers based on the search results:

• On top of stumps: According to, the small pieces of wood on top of stumps are called "bails" or "gills". However, this term may not be widely used or recognized outside of certain regions or contexts.

• With a canvas: When you buy a pre-stretched canvas, you may find small pieces of wood in a bag attached to the canvas, as explained in, , and. These pieces of wood are called "canvas tightening keys", "canvas wedges", or "stretcher bar keys". They are used to strengthen the canvas and maintain its tautness over time. To use them, you insert them into the slots on the corners of the canvas frame and tap them gently with a hammer until they fit snugly. This will push the corners of the frame outward and stretch the canvas. If the canvas becomes loose or saggy over time, you can use the keys to adjust the tension.

• For crafting: Small pieces of wood can also be used for crafting, as shown in and. These can come in various shapes, sizes, and types of wood, and can be used for a variety of projects such as art, toy making, stamping, carving, and more.