Ponytails, buns, donuts, and hair domes are popular hair accessories used to create a variety of hairstyles.

1. Ponytails: Ponytails are a classic hairstyle that can be created by pulling the hair back and securing it with an elastic band. They can be worn high or low on the head, and can be styled in a variety of ways to suit different occasions.

2. Buns: Buns are a versatile hairstyle that can be worn in many different ways. They can be created by pulling the hair back into a ponytail and twisting it into a bun shape, or by wrapping the hair around a bun maker or hair donut.

3. Donuts: Hair donuts are circular-shaped accessories that are used to create perfect buns. They come in a variety of sizes and colors, and can be used to create a variety of bun styles, from sleek and polished to messy and casual.

4. Hair domes: Hair domes are similar to hair donuts, but they have a dome shape that is designed to create a fuller, more voluminous bun. They can be used to create a variety of bun styles, and are especially useful for those with thin or fine hair.

Whether you're looking for a simple and classic hairstyle or something more trendy and unique, ponytails, buns, donuts, and hair domes are versatile accessories that can help you achieve a variety of different looks. They are easy to use and can be found in many different sizes and colors to suit your individual style and preferences.