If you've had problems finding perfectly-sized gags, inflatables can be the way to go.
This heavy-gauge inflatable rubber gag has a 1½" (3.5cm) bulb-shaped head which can be slowly inflated to the size and shape of a small apple, up to 2½" (6cm) in diameter. Air pressure is controlled by a bulb pump which is connected by a tube about 12" (30cm) long.
This heavy-gauge inflatable rubber gag has a 1½" (3.5cm) bulb-shaped head which can be slowly inflated to the size and shape of a small apple, up to 2½" (6cm) in diameter. Air pressure is controlled by a bulb pump which is connected by a tube about 12" (30cm) long.