Spotter's guide.

Bass guitars come in all shapes and sizes. There are longer necks, shorter necks, fatter necks, thinner necks. It's pretty much down to what you feel most comfortable with or best suits your playing style. Here's a quick roundup of some of the most iconic (click to enlarge).

There is even a specific model ideal for followers of the B-CNT method. Several examples of all the above were in this gentleman's 200 plus collection. But more about him in a minute.