A sprinkle by any other name...is still a sprinkle. But, just in case you were curious what's what, how about a little pictorial review of some of the most common ones?
Dragees: metallic balls that range in size from 2 to 10 millimeters and often come in a variety of metallic shades.
Jimmies: the classic sprinkle you top your ice cream with; rainbow version is most common, but you can find them in all colors online and in some stores.
Nonpareils: tiny spheres sometimes referred to as hundreds-and-thousands; they come in a wide variety of colors as well.
Quins: decorative sugar pieces; stars and circles are common, but you can find them in tons of seasonal shapes, too.
Sanding Sugar: a high sparkle topping that is slightly coarser than granulated sugar; comes in a variety of colors.
This is by no means a complete list of "sprinkle" options, but it's a nice primer. Now, who wants sprinkles?