Canning tongs are used to put filled preserving jars into canners, and remove them after heat processing. They are specially designed to be able to fit around the wide necks of preserving jars, and grip them enough to lift them securely.
There are two types of ice tongs. One type is for table-top use, for picking up ice cubes. The second type is far larger; it is used to pick up very large blocks of ice.
Kitchen tongs are devices used to picking up or manipulating food or food related objects. They can provide greater precision than other tools such as forks or spooks, and act as an extension of your hand.
Pickle grabbers are tong-like devices meant for fishing small pickled items out of a jar. The grabbing ends often look like a set of claws.
Salad tongs are used both to toss a salad, and serve it with. They can be made of metal, plastic or wood. They often come as part of a matching salad set.