I make at least two kinds of tops.
I make a top from a hardware package that has a string top and is self winding. This top can be a little confusing to the uninitiated, so I made a U-Tube video that shows how it works.
I also make finger tops out of pieces of wood I happen to have on hand. You can see the gallery for the variety of shapes and sizes of these tops that I have made. Most are either sold or given away and may or may not be stock for sale at any given time.