Butt Plugs are often shorter dildos intended for anal insertion. They tend to have a flared base to prevent the device from becoming lodged in the rectum.

Butt plugs are usually used covered by condoms for hygiene, and to allow for the easy disposal of any feces that they may come in contact with. They should not be shared with other people, due to the risk of blood-borne diseases, including HIV that can arise from the transfer of body fluids from one person to another. These should also never be used to stimulate any area other than the rectum, though they often are.

There are butt plugs that "ejaculate" by squirting water or other viscous fluids into the rectum. There are also vibrating butt plugs, butt plugs that can inflate and expand, and butt plugs with rotating beads and thrusting functions. Butt plugs can be moved in or out for pleasure; for this type of activity ribbed butt plugs can increase pleasure. They can also be worn continuously (or be lockable) for long periods of time.

Anal Beads are balls or bumps on a string or a semi-rigid wand. They are inserted into the rectum and then removed with varying speeds. The beads can be uniform or vary in size, and number from three to as many as eight.